Bump the gradle group with 5 updates

Bumps the gradle group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [io.grpc:grpc-protobuf](https://github.com/grpc/grpc-java) | `1.68.2` | `1.69.0` |
| [io.grpc:grpc-stub](https://github.com/grpc/grpc-java) | `1.68.2` | `1.69.0` |
| [io.grpc:grpc-netty-shaded](https://github.com/grpc/grpc-java) | `1.68.2` | `1.69.0` |
| [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) | `4.29.0` | `4.29.2` |
| [org.assertj:assertj-core](https://github.com/assertj/assertj) | `3.26.3` | `3.27.0` |


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 `com.google.protobuf:protobuf-java` from 4.29.0 to 4.29.2
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

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 `org.assertj:assertj-core` from 3.26.3 to 3.27.0
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.26.3...assertj-build-3.27.0)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: io.grpc:grpc-stub
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gradle
- dependency-name: io.grpc:grpc-stub
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
- dependency-name: org.assertj:assertj-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle
...

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

Author: dependabot[bot]

build.gradle

@@ -83,8 +83,8 @@ tasks.sourcesJar {
 // All it does is complain about generated code.
 javadoc { options.addStringOption('Xdoclint:none', '-quiet') }
 
-def grpcVersion = "1.68.2"
-def protocVersion = "4.29.0"
+def grpcVersion = "1.69.0"
+def protocVersion = "4.29.2"
 def authzedProtoCommit = "v1.38.0"
 def bufDir = "${buildDir}/buf"
 def protocPlatformTag = project.findProperty('protoc_platform') ? ":${protoc_platform}" : ""
@@ -149,7 +149,7 @@ configurations {
 // Test things
 dependencies {
   intTestImplementation "junit:junit:4.13.2"
-    intTestImplementation "org.assertj:assertj-core:3.26.3"
+    intTestImplementation "org.assertj:assertj-core:3.27.0"
 }
 
 tasks.register('integrationTest', Test) {