Update symbolic-demangle requirement from 8.0 to 9.0 (#137)

Updates the requirements on [symbolic-demangle](https://github.com/getsentry/symbolic) to permit the latest version.
- [Release notes](https://github.com/getsentry/symbolic/releases)
- [Changelog](https://github.com/getsentry/symbolic/blob/master/CHANGELOG.md)
- [Commits](getsentry/symbolic@8.0.0...9.0.0)

---
updated-dependencies:
- dependency-name: symbolic-demangle
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -40,7 +40,7 @@ protobuf = { version = "2.0", optional = true }
 criterion = {version = "0.3", optional = true}
 
 [dependencies.symbolic-demangle]
-version = "8.0"
+version = "9.0"
 default-features = false
 features = ["rust"]