Merge pull request #16 from github/fix-gha-repo-reference

Use correct, provided repository env var in Release action

Author: malancas

Diff for: .github/workflows/release.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Get pushed chart digest
         id: get-digest
         run: |
-          digest=$(crane digest ${{ env.REGISTRY }}/${{ env.repository }}/${{ steps.release-details.outputs.chart_name }}:${{ steps.release-details.outputs.chart_version }})
+          digest=$(crane digest ${{ env.REGISTRY }}/${{ github.repository }}/${{ steps.release-details.outputs.chart_name }}:${{ steps.release-details.outputs.chart_version }})
           echo digest=$digest >> $GITHUB_OUTPUT
       - name: Attest
         uses: actions/attest-build-provenance@173725a1209d09b31f9d30a3890cf2757ebbff0d # v1.1.2