Rename build job and add unit test step

Updated workflow to include unit tests after build.

Author: Navin-Rai-Developer

.github/workflows/main.yml

@@ -7,7 +7,7 @@ on:
     branches: [ "main" ]
 
 jobs:
-  build:
+  build-and-test:
     runs-on: macos-latest
 
     steps:
@@ -23,3 +23,10 @@ jobs:
           -project "Leaf Lens.xcodeproj" \
           -scheme "Leaf Lens" \
           -destination 'platform=iOS Simulator,name=iPhone SE (3rd generation)'
+
+      - name: Run Unit Tests
+        run: |
+          xcodebuild test \
+          -project "Leaf Lens.xcodeproj" \
+          -scheme "Leaf Lens" \
+          -destination 'platform=iOS Simulator,name=iPhone SE (3rd generation)'