[FIX] Bump actions/checkout and actions/cache

Node.js 20 is EOL, so we need to move to actions that support node.js 24
pre-commit/action should also be updated, but it seems the pre-commit
team has abandoned this Github action in favor of their https://pre-commit.ci/
service. This will have to wait for another time.

Author: ljmnoonan

.github/workflows/ci.yaml

@@ -13,12 +13,12 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
       - name: Set PY
         run: |
           echo "PY=$(python -c 'import hashlib,sys;print(hashlib.sha256(sys.version.encode()+sys.executable.encode()).hexdigest())')" >> $GITHUB_ENV
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
@@ -73,7 +73,7 @@ jobs:
             DOCKER_REPO=${GITHUB_REPOSITORY,,}
           fi
           echo "DOCKER_REPO=$DOCKER_REPO" >> "$GITHUB_ENV"
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
       - run: pip install -r tests/ci-requirements.txt