build: fixing provenance workflow by removing runs-on parameter which conflicts with uses (#248)

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Author: rsoberano-ld

.github/workflows/manual-publish.yml

@@ -39,7 +39,6 @@ jobs:
 
   release-provenance:
     needs: [ 'build-publish' ]
-    runs-on: ubuntu-latest
     permissions:
       actions: read
       id-token: write

.github/workflows/release-please.yml

@@ -58,7 +58,6 @@ jobs:
   release-provenance:
     needs: [ 'release-package' ]
     if: ${{ needs.release-package.outputs.release-created }}
-    runs-on: ubuntu-latest
     permissions:
       actions: read
       id-token: write