update actions

Author: rettinghaus

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
                 working-directory: .
 
         steps:
-            - uses: actions/checkout@v5
+            - uses: actions/checkout@v6
 
             - name: Set up Python ${{ matrix.python-version }}
               uses: actions/setup-python@v6
@@ -93,7 +93,7 @@ jobs:
                 pytest -m benchmark --benchmark-json=./output.json
 
             - name: Download previous benchmark data
-              uses: actions/cache@v4
+              uses: actions/cache@v5
               with:
                 path: ./cache
                 key: ${{ runner.os }}-benchmark

.github/workflows/coverage_readme.yml

@@ -17,7 +17,7 @@ jobs:
   update-coverage-on-readme:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
           fetch-depth: 0