Bump protobufVersion from 4.28.2 to 4.29.0

Bumps `protobufVersion` from 4.28.2 to 4.29.0.

Updates `com.google.protobuf:protobuf-java` from 4.28.2 to 4.29.0
- [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 `com.google.protobuf:protoc` from 4.28.2 to 4.29.0
- [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)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.google.protobuf:protoc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

sass-embedded-protocol/build.gradle

@@ -19,7 +19,7 @@ repositories {
     }
 }
 
-def protobufVersion = "4.28.2"
+def protobufVersion = "4.29.0"
 
 tasks.withType(com.google.protobuf.gradle.ProtobufExtract).configureEach {
     doFirst {