chore(deps): update actions/setup-python action to v5.3.0 (#502)

Co-authored-by: grafanarenovatebot[bot] <146220760+grafanarenovatebot[bot]@users.noreply.github.com>

Author: grafanarenovatebot[bot]

.github/workflows/publish-techdocs.yaml

@@ -115,7 +115,7 @@ jobs:
         run: sudo npm install -g @techdocs/[email protected]
 
       - name: setup python
-        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+        uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
         with:
           python-version: 3.11