Use venv

.github/workflows/main.yaml

@@ -12,7 +12,6 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 15
     if: "!startsWith(github.event.head_commit.message, '[skip ci] ')"
-
     steps:
       - uses: actions/checkout@v4
       - uses: camptocamp/initialise-gopass-summon-action@v2
@@ -23,16 +22,23 @@ jobs:
         if: env.HAS_SECRETS == 'HAS_SECRETS'
 
       - run: echo "${HOME}/.local/bin" >> ${GITHUB_PATH}
-      - run: python3 -m pip install --user --requirement=ci/requirements.txt
-
+      - name: Install CI requirements
+        run: |
+          python3 -m venv /tmp/venv
+          python3 -m pip install --requirement=ci/requirements.txt
+        env:
+          PATH: /tmp/venv/bin:$PATH
       - uses: actions/cache@v4
         with:
           path: ~/.cache/pre-commit
           key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
           restore-keys: "pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}\npre-commit-"
+        env:
+          PATH: /tmp/venv/bin:$PATH
       - run: pre-commit run --all-files
         env:
           SKIP: poetry-lock,isort
+          PATH: /tmp/venv/bin:$PATH
       - run: git diff && false
         if: failure()
 
@@ -45,3 +51,5 @@ jobs:
       - name: Publish
         run: c2cciutils-publish
         if: env.HAS_SECRETS == 'HAS_SECRETS'
+        env:
+          PATH: /tmp/venv/bin:$PATH