chore(deps): bump grpcVersion from 1.68.2 to 1.69.0 in /http2/java-grpc

Bumps `grpcVersion` from 1.68.2 to 1.69.0.

Updates `io.grpc:grpc-protobuf` from 1.68.2 to 1.69.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.68.2...v1.69.0)

Updates `io.grpc:grpc-stub` from 1.68.2 to 1.69.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.68.2...v1.69.0)

Updates `io.grpc:grpc-netty-shaded` from 1.68.2 to 1.69.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.68.2...v1.69.0)

Updates `io.grpc:protoc-gen-grpc-java` from 1.68.2 to 1.69.0
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.68.2...v1.69.0)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-stub
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.grpc:protoc-gen-grpc-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

http2/java-grpc/app/build.gradle

@@ -18,7 +18,7 @@ repositories {
     mavenCentral()
 }
 
-def grpcVersion = '1.68.2' // CURRENT_GRPC_VERSION
+def grpcVersion = '1.69.0' // CURRENT_GRPC_VERSION
 def protobufVersion = '3.17.2'
 def protocVersion = protobufVersion