[#2259] Upgrade GitHub Actions macOS runners to 13, 14 and 15 (#2260)

Update GitHub Action runner to macOS 13, 14, 15 and remove macOS 12

The macOS 12 version is deprecated and removed by the end of 2024.
This commit updates the GitHub Action runner to use macOS 13, 14,
and 15 instead.

.github/workflows/integration.yml

@@ -21,8 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # Deprecation Notice: MacOS 12 will be deprecated by the end of 2024
-        os: [ubuntu-20.04, ubuntu-22.04, macos-12, macos-13, windows-2019, windows-2022]
+        os: [ubuntu-20.04, ubuntu-22.04, macos-13, macos-14, macos-15, windows-2019, windows-2022]
     runs-on: ${{ matrix.os }}
     env:
       HOMEBREW_NO_AUTO_UPDATE: 1 # Prevent time-consuming brew update
@@ -79,7 +78,7 @@ jobs:
       run: ./gradlew clean checkstyleAll test systemTest coverage
 
     - name: Run code coverage
-      if: ${{ success() && ( matrix.os == 'ubuntu-20.04' || matrix.os == 'macos-11' || matrix.os == 'windows-2022' ) }}
+      if: ${{ success() && ( matrix.os == 'ubuntu-20.04' || matrix.os == 'macos-15' || matrix.os == 'windows-2022' ) }}
       uses: codecov/codecov-action@v3
       with:
         directory: ${{ github.workspace }}/build/reports/jacoco/coverage
@@ -113,7 +112,7 @@ jobs:
 
   cypress:
     name: Cypress frontend tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
     - name: Checkout repository
@@ -157,7 +156,7 @@ jobs:
       run: chmod +x gradlew
 
     - name: Set up environment
-      run: sudo apt-get install -y libgtk2.0-0 libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2
+      run: sudo apt-get install libgtk2.0-0t64 libgtk-3-0t64 libgbm-dev libnotify-dev libnss3 libxss1 libasound2t64 libxtst6 xauth xvfb
 
     - name: Run frontend tests
       run: ./gradlew frontendTest -Pci