Fix: Use bash shell consistently in CI workflow

Co-Authored-By: [email protected] <[email protected]>

.github/workflows/python-ci.yml

@@ -29,59 +29,70 @@ jobs:
         shell: bash
         run: echo "$HOME/.local/bin" >> $GITHUB_PATH
       - name: selfie-lib - install dependencies
+        shell: bash
         run: |
           uv venv
           source .venv/bin/activate || . .venv/Scripts/activate
           uv pip install -r requirements.txt -r dev-requirements.txt
         working-directory: python/selfie-lib
       - name: selfie-lib - pytest
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m pytest -vv
         working-directory: python/selfie-lib
       - name: selfie-lib - pyright
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m pyright
         working-directory: python/selfie-lib
       - name: selfie-lib - ruff
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m ruff format --check && python -m ruff check
         working-directory: python/selfie-lib
       - name: pytest-selfie - install dependencies
+        shell: bash
         run: |
           uv venv
           source .venv/bin/activate || . .venv/Scripts/activate
           uv pip install -r requirements.txt -r dev-requirements.txt
         working-directory: python/pytest-selfie
       - name: pytest-selfie - pyright
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m pyright
         working-directory: python/pytest-selfie
       - name: pytest-selfie - ruff
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m ruff format --check && python -m ruff check
         working-directory: python/pytest-selfie
       - name: example-pytest-selfie - install dependencies
+        shell: bash
         run: |
           uv venv
           source .venv/bin/activate || . .venv/Scripts/activate
           uv pip install -r requirements.txt -r dev-requirements.txt
         working-directory: python/example-pytest-selfie
       - name: example-pytest-selfie - pytest
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m pytest -vv
         working-directory: python/example-pytest-selfie
       - name: example-pytest-selfie - pyright
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m pyright
         working-directory: python/example-pytest-selfie
       - name: example-pytest-selfie - ruff
+        shell: bash
         run: |
           source .venv/bin/activate || . .venv/Scripts/activate
           python -m ruff format --check && python -m ruff check