Add more CI checks (#1150)

* Enable mypy.

* Add flake8.

* Add pylint with a long list of ignores to be removed.

plugins/modules/docker_compose_v2.py

@@ -484,7 +484,7 @@ class ServicesManager(BaseComposeManager):
                 self.fail(f"The key {key!r} for `scale` is not a string")
             try:
                 value = check_type_int(value)
-            except TypeError as exc:
+            except TypeError:
                 self.fail(f"The value {value!r} for `scale[{key!r}]` is not an integer")
             if value < 0:
                 self.fail(f"The value {value!r} for `scale[{key!r}]` is negative")

plugins/modules/docker_volume_info.py

@@ -85,7 +85,7 @@ from ansible_collections.community.docker.plugins.module_utils._common_api impor
 def get_existing_volume(client, volume_name):
     try:
         return client.get_json("/volumes/{0}", volume_name)
-    except NotFound as dummy:
+    except NotFound:
         return None
     except Exception as exc:
         client.fail(f"Error inspecting volume: {exc}")