Bump io.grpc:grpc-netty-shaded in /scheduler/data-flow

Bumps [io.grpc:grpc-netty-shaded](https://github.com/grpc/grpc-java) from 1.65.0 to 1.69.0.
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.65.0...v1.69.0)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

scheduler/data-flow/build.gradle.kts

@@ -35,7 +35,7 @@ dependencies {
     implementation("io.grpc:grpc-kotlin-stub:1.4.1")
     implementation("io.grpc:grpc-stub:1.65.0")
     implementation("io.grpc:grpc-protobuf:1.65.0")
-    runtimeOnly("io.grpc:grpc-netty-shaded:1.65.0")
+    runtimeOnly("io.grpc:grpc-netty-shaded:1.69.0")
     implementation("com.google.protobuf:protobuf-java") {
         version {
             strictly("[4.27.2,)")