ci: use modern pip version

Author: iisakkirotko

.github/workflows/codequality.yaml

@@ -19,8 +19,6 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Downgrade pip
-        run: pip install "pip<22"
       - name: Install dependencies
         run: |
           pip install ".[dev]"

.github/workflows/installation.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           python-version: 3.7
       - name: Install hatch
-        run: pip install hatch "pip<22"
+        run: pip install hatch
       - name: Build
         run: hatch build
       - name: Install

.github/workflows/unittest.yml

@@ -19,8 +19,6 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Downgrade pip
-        run: pip install "pip<22"
       - name: Install
         run: pip install ".[dev]"
       - name: test