chore(deps): bump sigstore/gh-action-sigstore-python from 3.3.0 to 3.4.0 (hiero-ledger#2354)

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Author: dependabot[bot]

.github/workflows/publish.yml

@@ -92,7 +92,7 @@ jobs:
           path: dist
 
       - name: Sign release distributions with Sigstore
-        uses: sigstore/gh-action-sigstore-python@04cffa1d795717b140764e8b640de88853c92acc # v3.3.0
+        uses: sigstore/gh-action-sigstore-python@5b79a39c381910c090341a2c9b0bf022c8b387e1 # v3.4.0
         with:
           inputs: |
             dist/*.whl