avro

Bump maven.version from 3.8.1 to 3.8.3 in /lang/java (#1374)

Bumps `maven.version` from 3.8.1 to 3.8.3.

Updates `maven-core` from 3.8.1 to 3.8.3
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.1...maven-3.8.3)

Updates `maven-compat` from 3.8.1 to 3.8.3
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.1...maven-3.8.3)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.maven:maven-compat
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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