Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,20 @@
+version: 2
+updates:
+- package-ecosystem: maven
+  directory: "/"
+  schedule:
+    interval: weekly
+    time: "00:00"
+    timezone: America/Sao_Paulo
+  open-pull-requests-limit: 99
+  ignore:
+  - dependency-name: com.fasterxml.jackson:jackson-bom
+    versions:
+    - 2.12.1
+    - 2.12.2
+  - dependency-name: org.asynchttpclient:async-http-client
+    versions:
+    - 2.12.2
+  - dependency-name: org.codehaus.mojo:animal-sniffer-enforcer-rule
+    versions:
+    - "1.19"