Error stamping for maven target on windows

```
(16:05:46) INFO: From Compiling compiler/src/java_plugin/cpp/java_generator.cpp [for tool]:
--
  | C:\b\54t5nytv\execroot\build_buildfarm\external\io_grpc_grpc_java\compiler\src\java_plugin\cpp\java_generator.h(35) : warning C4722: 'LogHelper::~LogHelper': destructor never returns, potential memory leak
  | (16:05:47) ERROR: C:/b/yechmtpy/external/maven/BUILD:3188:11: Stamping the manifest of @maven//:org_projectlombok_lombok [for tool] failed: failed to delete output files before executing action
```
Seems spurious, happy to see a redirect if this is a bazel side failure: https://buildkite.com/bazel/buildfarm-farmer/builds/6855

Start with the Windows log and the external/maven/BUILD target at line 3188, then inspect the referenced Buildfarm build for context. Determine whether the manifest-stamping failure belongs to rules_jvm_external or Bazel/Buildfarm; done means the issue is either fixed with a reproducible test or redirected to the responsible project.

Written by the indexing model from the issue text.