Add google.protobuf.runtime_version (#13161)

stubs/protobuf/google/protobuf/runtime_version.pyi

@@ -0,0 +1,23 @@
+from enum import Enum
+from typing import Final
+
+class Domain(Enum):
+    GOOGLE_INTERNAL = 1
+    PUBLIC = 2
+
+OSS_DOMAIN: Final[Domain]
+OSS_MAJOR: Final[int]
+OSS_MINOR: Final[int]
+OSS_PATCH: Final[int]
+OSS_SUFFIX: Final[str]
+DOMAIN: Final[Domain]
+MAJOR: Final[int]
+MINOR: Final[int]
+PATCH: Final[int]
+SUFFIX: Final[str]
+
+class VersionError(Exception): ...
+
+def ValidateProtobufRuntimeVersion(
+    gen_domain: Domain, gen_major: int, gen_minor: int, gen_patch: int, gen_suffix: str, location: str
+) -> None: ...