Fixup release workflow

Author: olix0r

.github/workflows/release.yml

@@ -23,6 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     container: ghcr.io/linkerd/dev:v30-rust
     steps:
+      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
       - id: meta
         shell: bash
         run: |