Force rebuild of bazel-contrib#1710 due to Windows failure

Got an odd failure on the Windows build:

- https://buildkite.com/bazel/rules-scala-scala/builds/5394#01954e5a-8f5b-4880-befa-1bce0d21d512/75-179

```txt
ERROR:
  C:/tools/msys64/home/b/_bazel_b/xknd5zlq/external/com_google_protobuf/src/google/protobuf/compiler/java/BUILD.bazel:87:11:
  Compiling src/google/protobuf/compiler/java/java_features.pb.cc
  [for tool] failed: (Exit 2):
  cl.exe failed: error executing CppCompile command
  (from target @@com_google_protobuf//src/google/protobuf/compiler/java:java_features_bootstrap)
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.39.33519\bin\HostX64\x64\cl.exe ...
(remaining 1 argument skipped)
--
  | external/com_google_protobuf/src/google/protobuf/compiler/java/java_features.pb.cc(6):
    fatal error C1083: Cannot open include file:
    'google/protobuf/compiler/java/java_features.pb.h':
    No such file or directory
```

`src/google/protobuf/compiler/java/java_features.pb.h` most definitely
exists in protobuf v29.3:

- https://github.com/protocolbuffers/protobuf/blob/v29.3/src/google/protobuf/compiler/java/java_features.pb.h

All the other builds passed. Kicking the pull requeest branch with this
empty commit to see if the Windows build will pass, in case it was some
weird transient error.

Author: mbland