Sync errorprone conventions (#4666)

buildSrc/src/main/kotlin/otel.errorprone-conventions.gradle.kts

@@ -7,6 +7,11 @@ plugins {
   id("net.ltgt.nullaway")
 }
 
+dependencies {
+  errorprone("com.google.errorprone:error_prone_core")
+  errorprone("com.uber.nullaway:nullaway")
+}
+
 val disableErrorProne = properties["disableErrorProne"]?.toString()?.toBoolean() ?: false
 
 tasks {
@@ -21,6 +26,9 @@ tasks {
         disableWarningsInGeneratedCode.set(true)
         allDisabledChecksAsWarnings.set(true)
 
+        // Ignore warnings for generated and vendored classes
+        excludedPaths.set(".*/build/generated/.*|.*/internal/shaded/.*")
+
         // Still Java 8
         disable("Varifier")
 
@@ -40,9 +48,6 @@ tasks {
         // deprecation warning.
         disable("UnnecessarilyFullyQualified")
 
-        // Ignore warnings for protobuf and jmh generated files.
-        excludedPaths.set(".*generated.*|.*internal.shaded.*")
-
         // We use animal sniffer
         disable("Java7ApiChecker")
         disable("Java8ApiChecker")

buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts

@@ -186,9 +186,6 @@ dependencies {
   compileOnly("com.google.auto.value:auto-value-annotations")
   compileOnly("com.google.code.findbugs:jsr305")
 
-  errorprone("com.google.errorprone:error_prone_core")
-  errorprone("com.uber.nullaway:nullaway")
-
   annotationProcessor("com.google.guava:guava-beta-checker")
 
   // Workaround for @javax.annotation.Generated