Merge pull request #497 from reload/alert-autofix-1

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

Author: arnested

.github/workflows/docker-build.yml

@@ -1,5 +1,7 @@
 on: push
 name: Docker build and run
+permissions:
+  contents: read
 jobs:
   build:
     name: Docker build and run