Update build.yml

Author: anumol-baby

.github/workflows/build.yml

@@ -5,10 +5,13 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     name: Build All Projects
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest  
 
     strategy:
       fail-fast: false
@@ -30,4 +33,4 @@ jobs:
         run: dotnet restore ${{ matrix.project }}
 
       - name: Build project
-        run: dotnet build ${{ matrix.project }} --no-restore --configuration Release
+        run: dotnet build ${{ matrix.project }} --no-restore --configuration Release