ci: add mypy for static type checking (#1101)

# What does this PR do?

- Enable mypy to run in the CI on a subset of the repository
- Fix a few mypy errors
- Run mypy from pre-commit

Signed-off-by: Sébastien Han <seb@redhat.com>
 
[//]: # (If resolving an issue, uncomment and update the line below)
[//]: # (Closes #[issue-number])

## Test Plan
[Describe the tests you ran to verify your changes with result
summaries. *Provide clear instructions so the plan can be easily
re-executed.*]

[//]: # (## Documentation)

Signed-off-by: Sébastien Han <seb@redhat.com>

.pre-commit-config.yaml

@@ -45,23 +45,26 @@ repos:
     hooks:
     -   id: uv-export
         args: [
-            "--frozen", 
-            "--no-hashes", 
-            "--no-emit-project", 
+            "--frozen",
+            "--no-hashes",
+            "--no-emit-project",
             "--output-file=requirements.txt"
         ]
         files: ^pyproject\.toml$
     -   id: uv-sync
 
-# -   repo: https://github.com/pre-commit/mirrors-mypy
-#     rev: v1.14.0
-#     hooks:
-#     -   id: mypy
-#         additional_dependencies:
-#           - types-requests
-#           - types-setuptools
-#           - pydantic
-#         args: [--ignore-missing-imports]
+-   repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.15.0
+    hooks:
+    -   id: mypy
+        additional_dependencies:
+          - uv==0.6.2
+          - mypy
+          - pytest
+          - rich
+          - types-requests
+          - pydantic
+        pass_filenames: false
 
 # - repo: https://github.com/jsh9/pydoclint
 #   rev: d88180a8632bb1602a4d81344085cf320f288c5a