chore(github-action): update actions/attest-build-provenance digest digest to 8835c60 (#770)

Author: truecharts-admin

.github/workflows/app-builder.yaml

@@ -282,14 +282,14 @@ jobs:
           image: quay.io/containerforge/${{ inputs.app }}@${{ needs.merge.outputs.digest }}
 
       - name: Attestation for GHCR
-        uses: actions/attest-build-provenance@331a7ac6b7b893a9d009fe50d4e268b659c70ae5
+        uses: actions/attest-build-provenance@8835c60c52cafa2b7f8bd4fadd525d33bf16cefe
         with:
           push-to-registry: true
           subject-name: ghcr.io/${{ github.repository_owner }}/${{ inputs.app }}
           subject-digest: ${{ needs.merge.outputs.digest }}
 
       - name: Attestation for Quay
-        uses: actions/attest-build-provenance@331a7ac6b7b893a9d009fe50d4e268b659c70ae5
+        uses: actions/attest-build-provenance@8835c60c52cafa2b7f8bd4fadd525d33bf16cefe
         with:
           push-to-registry: true
           subject-name: quay.io/containerforge/${{ inputs.app }}