Bump proto in /samples/lambda-kotlin-request-router-sample-proto

Bumps `proto` from 3.11.1 to 4.27.2.

Updates `com.google.protobuf:protobuf-java` from 3.11.1 to 4.27.2
- [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 `com.google.protobuf:protobuf-java-util` from 3.11.1 to 4.27.2

Updates `com.google.protobuf:protoc` from 3.11.1 to 4.27.2
- [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)

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

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

samples/lambda-kotlin-request-router-sample-proto/build.gradle.kts

@@ -32,7 +32,7 @@ repositories {
     maven { url = URI("https://jitpack.io") }
 }
 
-val proto = "3.11.1"
+val proto = "4.27.2"
 dependencies {
     implementation(kotlin("stdlib"))
     implementation(kotlin("reflect"))