Bump the java group in /java with 2 updates

Bumps the java group in /java with 2 updates: commons-validator:commons-validator and [io.grpc:grpc-bom](https://github.com/grpc/grpc-java).


Updates `commons-validator:commons-validator` from 1.7 to 1.8.0

Updates `io.grpc:grpc-bom` from 1.59.1 to 1.60.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.59.1...v1.60.0)

---
updated-dependencies:
- dependency-name: commons-validator:commons-validator
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: java
- dependency-name: io.grpc:grpc-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: java
...

Signed-off-by: dependabot[bot] <support@github.com>

java/pom.xml

@@ -43,8 +43,8 @@
         <protobuf.maven.plugin.version>0.6.1</protobuf.maven.plugin.version>
 
         <re2j.version>1.7</re2j.version>
-        <commons.validator.version>1.7</commons.validator.version>
-        <grpc.version>1.59.1</grpc.version>
+        <commons.validator.version>1.8.0</commons.validator.version>
+        <grpc.version>1.60.0</grpc.version>
         <junit.version>4.13.2</junit.version>
         <assertj.version>3.24.2</assertj.version>
         <java.release>8</java.release>