Build on Windows broken due to antlr4-cpp-runtime issue #1502

There is an upstream issue with the antlr4-cpp-runtime (bazelbuild/bazel-central-registry#4564) which is blocking compilation on MSVC/Windows.

The essence of the issue is that Bazel insists on adding the repo root to the include path, so you can use include paths relative to the repository root. Unfortunately though, this leads to a deeply unfortunate situation where the C++ standard <version> header include (included by Abseil) winds up finding the VERSION file at the root of the antlr4-cpp-runtime repo.

This issue is being added here since it will require updating the antlr4-cpp-runtime BCR dependency once it is fixed or worked around there.

Related to #768