Add dependabot to update github-actions and python requirements (#5697)

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+
+updates:
+  - directory: "/"
+    package-ecosystem: "pip"
+    schedule:
+      interval: "daily"
+
+  - directory: "/"
+    package-ecosystem: "github-actions"
+    schedule:
+      interval: "daily"

.github/workflows/tests.yaml

@@ -27,7 +27,9 @@ jobs:
       with:
         python-version: 3.8
     - name: Install requirements
-      run: pip install ".[all,tests]" Pygments collective.checkdocs pre-commit
+      run: |
+        pip install wheel
+        pip install ".[all,tests]" Pygments collective.checkdocs pre-commit
     - name: install temporary dependencies
       run: |
         pip install git+https://github.com/isidentical/gdrivefs@service-account