Remove pip update

Author: AnHeuermann

.github/workflows/ci.yml

@@ -31,10 +31,6 @@ jobs:
         with:
           python-version: '3.10'
 
-      - name: Update pip
-        run: |
-          python -m pip install --upgrade pip
-
       - name: Install Python packages (Windows only)
         if: matrix.os == 'windows-latest'
         shell: pwsh
@@ -109,10 +105,6 @@ jobs:
         with:
           python-version: '3.10'
 
-      - name: Update pip
-        run: |
-          pip install --upgrade pip
-
       - name: Cache pip dependencies
         uses: actions/cache@v5
         with: