Merge pull request #64 from jmichelp/master

Fix cargo audit workflow

.github/workflows/cargo_audit.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   audit:
     runs-on: ubuntu-18.04
-    if: env.GITHUB_HEAD_REF == 0
+    if: github.repository == 'google/OpenSK'
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1