Fix CI steps triggers

.github/workflows/main.yml

@@ -28,24 +28,24 @@ jobs:
           python-version: '3.10'
 
       - name: (Windows) Set up MinGW
-        if: ${{ matrix.identifier }} == 'windows'
+        if: ${{ startsWith(matrix.identifier, 'windows') }}
         uses: egor-tensin/setup-mingw@v2
 
       - name: (Windows) Prepare cross compilation
-        if: ${{ matrix.identifier }} == 'windows'
+        if: ${{ startsWith(matrix.identifier, 'windows') }}
         shell: sh
         run: |
           echo "OS=Windows_NT" >> $GITHUB_ENV
 
       - name: (Linux) Install dependencies
-        if: ${{ matrix.identifier }} == 'linux'
+        if: ${{ startsWith(matrix.identifier, 'linux') }}
         run: |
           sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
           sudo apt-get update -y -qq
           sudo apt-get install libsdl2-dev libglew-dev
 
       - name: (Web) Set up Emscripten
-        if: ${{ matrix.identifier }} == 'web'
+        if: ${{ startsWith(matrix.identifier, 'web') }}
         uses: mymindstorm/setup-emsdk@v14
 
       - name: Build shared library