Fix weird issue with annotation in test compilation

Without this change `./gradlew :executor:compileTestJava` fails with:

```
> Task :executor:compileTestJava
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe': class file for com.google.errorprone.annotations.InlineMe not found
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'value()' in type 'InlineMeValidationDisabled': class file for com.google.errorprone.annotations.InlineMeValidationDisabled not found
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'value()' in type 'InlineMeValidationDisabled'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'value()' in type 'InlineMeValidationDisabled'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe'
/home/runner/.gradle/caches/modules-2/files-2.1/com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'value()' in type 'InlineMeValidationDisabled'
error: warnings found and -Werror specified
```

`./gradlew allDeps` should the correct annotations dependency being part of the test compilation classpath.

Go figure.

executor/build.gradle.kts

@@ -58,4 +58,10 @@ tasks.test {
     dependsOn(":test-service-extension-metadata:jar")
     dependsOn(":test-services:jar")
     dependsOn(":test-service:buildAppImage")
+}
+
+tasks.compileTestJava {
+    // For some reason, since upgrading guava-testlib from 33.0.0-jre to 33.1.0-jre, without this, task fails with:
+    // ../com.google.guava/guava/33.2.1-jre/818e780da2c66c63bbb6480fef1f3855eeafa3e4/guava-33.2.1-jre.jar(/com/google/common/collect/Streams.class): warning: Cannot find annotation method 'replacement()' in type 'InlineMe': class file for com.google.errorprone.annotations.InlineMe not found
+    options.compilerArgs.add("-Xlint:-classfile")
 }