Add regular build action check

.github/workflows/build.yml

@@ -0,0 +1,41 @@
+name: Build GitUp
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build GitUp Application
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Select Xcode version
+        run: sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+
+      - name: Show Xcode version
+        run: xcodebuild -version
+
+      - name: Build GitUp
+        working-directory: GitUp
+        run: |
+          xcodebuild build \
+            -scheme "Application" \
+            -configuration "Release" \
+            CODE_SIGN_IDENTITY="" \
+            CODE_SIGNING_REQUIRED=NO \
+            CODE_SIGNING_ALLOWED=NO
+

README.md

@@ -1,3 +1,4 @@
+[![GitUp](https://github.com/git-up/GitUp/actions/workflows/build.yml/badge.svg)](https://github.com/git-up/GitUp/actions/workflows/build.yml)
 [![GitUpKit Tests](https://github.com/git-up/GitUp/actions/workflows/test.yml/badge.svg)](https://github.com/git-up/GitUp/actions/workflows/test.yml)
 
 GitUp