ci: Move the lsan builders from build.yml into a dedicated file

Qt 6.7 requires arch linux_gcc_64 instead of gcc_64, which is
which would require more iffery in build.yml which is already
complex.

I prefer having many simple yml files instead of a swiss army-knife
build.yml

.github/workflows/build.yml

@@ -62,20 +62,6 @@ jobs:
                 - llvm
               pip_pgks:
                 - shiboken6-generator==6.6.0 pyside6==6.6.0
-          - os: ubuntu-latest
-            preset:
-              name: ci-dev-asan-qtwidgets-qt6
-              qt_version: "6.7.*"
-              detect_leaks: 1
-              apt_pgks:
-                - lld
-          - os: ubuntu-latest
-            preset:
-              name: ci-dev-asan-qtquick-qt6
-              qt_version: "6.7.*"
-              detect_leaks: 1
-              apt_pgks:
-                - lld
 
     steps:
       - name: Install Qt ${{ matrix.preset.qt_version }} with options and default aqtversion

.github/workflows/lsan6.yml

@@ -0,0 +1,62 @@
+# SPDX-FileCopyrightText: 2023 Klarälvdalens Datakonsult AB, a KDAB Group company <[email protected]>
+#
+# SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
+
+name: Workflow for running leak check on Qt6 KDDW
+
+on:
+  push:
+    branches:
+      - 2.1
+      - main
+  pull_request:
+    branches:
+      - 2.1
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        preset:
+          - name: ci-dev-asan-qtwidgets-qt6
+            qt_version: "6.7.0"
+          - name: ci-dev-asan-qtquick-qt6
+            qt_version: "6.7.0"
+
+    steps:
+      - name: Install Qt ${{ matrix.preset.qt_version }}
+        uses: jurplel/install-qt-action@v3
+        with:
+          version: ${{ matrix.preset.qt_version }}
+          cache: true
+          arch: linux_gcc_64
+
+      - name: Install dependencies on Ubuntu
+        run: |
+          sudo apt update -qq
+          sudo apt install lld libspdlog-dev ninja-build -y
+
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Configure project
+        run: cmake -S . -B ./build-${{ matrix.preset.name }} --preset ${{ matrix.preset.name }}
+
+      - name: Build Project ${{ matrix.preset.build_preset_arg }}
+        run: cmake --build ./build-${{ matrix.preset.name }} ${{ matrix.preset.build_preset_arg }}
+
+      - name: Run tests on Linux (offscreen)
+        run: ctest --test-dir ./build-${{ matrix.preset.name }} --output-on-failure
+        env:
+          QT_QPA_PLATFORM: offscreen
+          QT_QUICK_BACKEND: software
+          LSAN_OPTIONS: detect_leaks=1
+
+      - name: Read tests log when it fails
+        uses: andstor/file-reader-action@v1
+        if: ${{ failure() && startsWith(matrix.preset.name, 'ci-dev-') }}
+        with:
+          path: "./build-${{ matrix.preset.name }}/Testing/Temporary/LastTest.log"