Fix pre-commit and add missing dummy compatibility proxy

Author: vkarampudi

setup.py

@@ -86,7 +86,7 @@ def run(self):
             os.path.dirname(os.path.realpath(__file__)), ".bazelversion"
         )
         if os.path.exists(bazelversion_path):
-            with open(bazelversion_path, "r") as f:
+            with open(bazelversion_path) as f:
                 bazel_version = f.read().strip()
                 os.environ["USE_BAZEL_VERSION"] = bazel_version
 

third_party/dummy_compatibility_proxy/BUILD

@@ -0,0 +1,4 @@
+JavaInfo = provider()
+java_common = struct()
+java_common_internal_compile = struct()
+java_info_internal_merge = struct()