deps: update dependency com.google.cloud:google-cloud-shared-dependencies to v3.12.0.with temp exclusions.

[zhumin8]

Temp exclusions are needed to avoid dependency version discrepancy due to 3.23.2.
For more context: googleapis/sdk-platform-java#1791 (comment)
@suztomo Can you take a look if this temp fix looks okay?

Closes #2509

[zhumin8]

ci/windows error

D:\a\java-spanner\java-spanner>"C:\Program Files\Git\bin\bash.exe" D:\a\java-spanner\java-spanner\.kokoro\build.sh 
/c/ProgramData/chocolatey/lib/maven/apache-maven-3.8.7/bin/mvn: line 92: cd: C:\Program Files\Eclipse Adoptium\jdk-11.0.18.10-hotspot\: No such file or directory
The JAVA_HOME environment variable is not defined correctly,
this environment variable is needed to run this program.

This looks to be failing for a while, not this pr specific.

[arpan14]

1. How would we ensure that this temp exclusion gets removed? Do we have a good internal tracking mechanism?
2. How do we know that this may not introduce any other side effect? Any side effect that can be caused by excluding j2objc-annotations dependency? Or is this transitively getting included?

[zhumin8]

1. I can create a b ticket and internal note to track and ensure the release manager to remove this temp fix when protobuf upgrade for the shared-dependency. What do you think?
2. This is transitively included. In fact multiple dependency have it included. So after this exclusion, j2objc-annotations is still available via

[INFO] --< com.google.api.grpc:proto-google-cloud-spanner-admin-instance-v1 >--
[INFO] Building proto-google-cloud-spanner-admin-instance-v1 6.43.1-SNAPSHOT [2/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ proto-google-cloud-spanner-admin-instance-v1 ---
[INFO] com.google.api.grpc:proto-google-cloud-spanner-admin-instance-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] ---------< com.google.api.grpc:proto-google-cloud-spanner-v1 >----------
[INFO] Building proto-google-cloud-spanner-v1 6.43.1-SNAPSHOT            [3/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ proto-google-cloud-spanner-v1 ---
[INFO] com.google.api.grpc:proto-google-cloud-spanner-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] --< com.google.api.grpc:proto-google-cloud-spanner-admin-database-v1 >--
[INFO] Building proto-google-cloud-spanner-admin-database-v1 6.43.1-SNAPSHOT [4/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ proto-google-cloud-spanner-admin-database-v1 ---
[INFO] com.google.api.grpc:proto-google-cloud-spanner-admin-database-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] --< com.google.api.grpc:grpc-google-cloud-spanner-admin-instance-v1 >---
[INFO] Building grpc-google-cloud-spanner-admin-instance-v1 6.43.1-SNAPSHOT [5/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ grpc-google-cloud-spanner-admin-instance-v1 ---
[INFO] com.google.api.grpc:grpc-google-cloud-spanner-admin-instance-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] ----------< com.google.api.grpc:grpc-google-cloud-spanner-v1 >----------
[INFO] Building grpc-google-cloud-spanner-v1 6.43.1-SNAPSHOT             [6/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ grpc-google-cloud-spanner-v1 ---
[INFO] com.google.api.grpc:grpc-google-cloud-spanner-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] --< com.google.api.grpc:grpc-google-cloud-spanner-admin-database-v1 >---
[INFO] Building grpc-google-cloud-spanner-admin-database-v1 6.43.1-SNAPSHOT [7/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ grpc-google-cloud-spanner-admin-database-v1 ---
[INFO] com.google.api.grpc:grpc-google-cloud-spanner-admin-database-v1:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.guava:guava:jar:32.0.1-jre:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] ---------------< com.google.cloud:google-cloud-spanner >----------------
[INFO] Building Google Cloud Spanner 6.43.1-SNAPSHOT                     [8/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ google-cloud-spanner ---
[INFO] com.google.cloud:google-cloud-spanner:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.api.grpc:grpc-google-common-protos:jar:2.21.0:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile
[INFO] 
[INFO] -----------< com.google.cloud:google-cloud-spanner-executor >-----------
[INFO] Building Google Cloud Spanner Executor 6.43.1-SNAPSHOT            [9/10]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:3.5.0:tree (default-cli) @ google-cloud-spanner-executor ---
[INFO] com.google.cloud:google-cloud-spanner-executor:jar:6.43.1-SNAPSHOT
[INFO] \- com.google.http-client:google-http-client:jar:1.43.3:compile
[INFO]    \- com.google.j2objc:j2objc-annotations:jar:2.8:compile

[arpan14]

• Sure thanks for the clarification and having this transitively included ensures there are no others side effects.
• Yes, internal ticket works to track removing this workaround.