Merge pull request #19 from nihaopaul/alert-autofix-1

Potential fix for code scanning alert no. 1: Workflow does not contain permissions

Author: nihaopaul

.github/workflows/rust.yml

@@ -10,6 +10,8 @@ env:
 jobs:
   docker:
     name: push docker image to hub
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     steps:
       - name: check repository