Upgrade protobuf Gradle plugin to 0.10.0 across all modules (#11310)

build: Upgrade protobuf Gradle plugin to 0.10.0 across all modules

Aligns all 8 usages from 0.8.18/0.9.3/0.9.4 to 0.10.0 as part of
Gradle 9 preparation. Also fixes related Gradle 9 incompatibilities:

* Replace deprecated `$buildDir` with `layout.buildDirectory.dir()`
  and fix the generated source path (source -> sources)
* Replace eager spread-operator `*.plugins {}` with lazy `configureEach`
* Remove redundant legacy `buildscript { classpath }` block in
  armeria-grpc/application

fix: remove manual srcDirs override that broke proto to Groovy compile chain

The `srcDirs +=` assignment discards the lazy task-dependency wiring
that protobuf plugin 0.10.0 establishes between `generateTestProto` and
`compileTestJava`, causing `compileTestGroovy` to miss Test2, Test3 on
**clean builds**. Now that the plugin auto-registers generated sources;
the block can go away.

Co-authored-by: devflow.devflow-routing-intake <devflow.devflow-routing-intake@kubernetes.us1.ddbuild.io>

Author: bric3

dd-java-agent/agent-iast/build.gradle

@@ -4,7 +4,7 @@ import net.ltgt.gradle.errorprone.CheckSeverity
 plugins {
   id 'com.gradleup.shadow'
   id 'me.champeau.jmh'
-  id 'com.google.protobuf' version '0.8.18'
+  id 'com.google.protobuf' version '0.10.0'
   id 'net.ltgt.errorprone' version '3.1.0'
 }
 
@@ -115,14 +115,6 @@ tasks.named("forbiddenApisJmh") {
   ignoreFailures = true
 }
 
-sourceSets {
-  test {
-    java {
-      srcDirs += ["$buildDir/generated/source/proto/test/java"]
-    }
-  }
-}
-
 tasks.withType(JavaCompile).configureEach {
   if (name == 'compileJava') {
     options.errorprone {

dd-java-agent/instrumentation/armeria/armeria-grpc-0.84/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-  id 'com.google.protobuf' version '0.8.18'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 muzzle {

dd-java-agent/instrumentation/grpc-1.5/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-  id 'com.google.protobuf' version '0.8.18'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 muzzle {

dd-java-agent/instrumentation/protobuf-3.0/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-  id 'com.google.protobuf' version '0.9.4'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 apply from: "$rootDir/gradle/java.gradle"
@@ -37,7 +37,7 @@ dependencies {
 sourceSets {
   test {
     java {
-      srcDir "$buildDir/generated/source/proto/test/java"
+      srcDir layout.buildDirectory.dir("generated/sources/proto/test/java")
     }
   }
 }

dd-smoke-tests/armeria-grpc/application/build.gradle

@@ -1,14 +1,8 @@
-buildscript {
-  dependencies {
-    classpath 'com.google.protobuf:protobuf-gradle-plugin:0.9.3'
-  }
-}
-
 plugins {
   id 'application'
   id 'java'
   id 'com.gradleup.shadow' version '8.3.9'
-  id 'com.google.protobuf' version '0.9.3'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 def sharedRootDir = "$rootDir/../../../"
@@ -39,8 +33,8 @@ protobuf {
     }
   }
   generateProtoTasks {
-    ofSourceSet('main')*.plugins {
-      grpc {}
+    ofSourceSet('main').configureEach {
+      plugins { grpc {} }
     }
   }
 }

dd-smoke-tests/armeria-grpc/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-  id 'com.google.protobuf' version '0.9.3'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 apply from: "$rootDir/gradle/java.gradle"
@@ -33,8 +33,8 @@ protobuf {
     }
   }
   generateProtoTasks {
-    ofSourceSet('main')*.plugins {
-      grpc {}
+    ofSourceSet('main').configureEach {
+      plugins { grpc {} }
     }
   }
 }

dd-smoke-tests/grpc-1.5/build.gradle

@@ -4,7 +4,7 @@ plugins {
   id 'application'
   id 'java'
   id 'java-test-fixtures'
-  id 'com.google.protobuf' version '0.9.4'
+  id 'com.google.protobuf' version '0.10.0'
   id 'com.gradleup.shadow'
 }
 

dd-smoke-tests/springboot-grpc/build.gradle

@@ -2,7 +2,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 
 plugins {
   id 'com.gradleup.shadow'
-  id 'com.google.protobuf' version '0.8.18'
+  id 'com.google.protobuf' version '0.10.0'
 }
 
 apply from: "$rootDir/gradle/java.gradle"
@@ -26,8 +26,8 @@ protobuf {
     }
   }
   generateProtoTasks {
-    all()*.plugins {
-      grpc {}
+    ofSourceSet("main").configureEach {
+      plugins { grpc {} }
     }
   }
 }