Merge pull request #220 from nanotaboada/feature/missing-workflow-permissions

fix(ci): set workflow permissions (contents: read)

Author: nanotaboada

.github/workflows/dotnet.yml

@@ -3,6 +3,9 @@
 
 name: .NET CI
 
+permissions:
+  contents: read
+
 on:
   push:
     branches: [ "master" ]