[#83] Fix shellcheck pre-commit action

Original shellcheck action requires Docker to run and it's not always
available, especially inside Docker containers. Replacing it with python
wrapper to simplify usage with Docker-based CI systems like Drone and
WoodpeckerCI.

Signed-off-by: Stanislav Bogatyrev <s.bogatyrev@yadro.com>

.pre-commit-config.yaml

@@ -29,8 +29,7 @@ repos:
       - id: gitlint
         stages: [commit-msg]
 
-  - repo: https://github.com/koalaman/shellcheck-precommit
-    rev: v0.9.0
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: v0.9.0.2
     hooks:
       - id: shellcheck
-#       args: ["--severity=warning"]  # Optionally only show errors and warnings