ENH: add the linux build action to github

.github/workflows/build_linux.yml

@@ -0,0 +1,44 @@
+name: Build Linux
+
+on: [push, pull_request]
+
+jobs:
+  appimage-builder:
+    name: Linux AppImage Build
+
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install cmake libgl1-mesa-dev libgtk-3-dev libxkbcommon-dev libunwind-dev libfuse2 -y
+      - name: Install dependencies from BuildLinux.sh
+        shell: bash
+        run: sudo ./BuildLinux.sh -ur
+      - name: Fix permissions
+        shell: bash
+        run: sudo chown $USER -R ./
+      - name: Build deps
+        id: cache_deps
+        uses: actions/cache@v3
+        env:
+          cache-name: ${{ runner.os }}-cache-bambustudio_deps_x64
+        with:
+          path: ${{ github.workspace }}/deps/build/destdir
+          key: build-${{ env.cache-name }}
+
+      - if: ${{ steps.cache_deps.outputs.cache-hit != 'true' }}
+        name: Build deps
+        working-directory: ${{ github.workspace }}
+        continue-on-error: true
+        run: ./BuildLinux.sh -dsr
+
+      - name: Build Studio
+        shell: bash
+        run: ./BuildLinux.sh -ir
+      - uses: actions/upload-artifact@v3
+        with:
+          name: BambuStudio_Linux
+          path: './build/BambuStudio_ubu64.AppImage'