Adding upstream version 2.2.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pre_commit/languages/docker_image.py

@@ -0,0 +1,22 @@
+from typing import Sequence
+from typing import Tuple
+
+from pre_commit.hook import Hook
+from pre_commit.languages import helpers
+from pre_commit.languages.docker import assert_docker_available
+from pre_commit.languages.docker import docker_cmd
+
+ENVIRONMENT_DIR = None
+get_default_version = helpers.basic_get_default_version
+healthy = helpers.basic_healthy
+install_environment = helpers.no_install
+
+
+def run_hook(
+        hook: Hook,
+        file_args: Sequence[str],
+        color: bool,
+) -> Tuple[int, bytes]:  # pragma: win32 no cover
+    assert_docker_available()
+    cmd = docker_cmd() + hook.cmd
+    return helpers.run_xargs(hook, cmd, file_args, color=color)