CI: build using branches that have new luajit 2.1 syntax extensions

.github/workflows/main.yml

@@ -42,7 +42,7 @@ jobs:
       uses: actions/checkout@v4
       with:
         repository: love2d/love-appimage-source
-        ref: main
+        ref: luajit-syntax
     - name: Checkout LÖVE
       uses: actions/checkout@v4
       with:
@@ -237,7 +237,7 @@ jobs:
       with:
         path: megasource
         repository: love2d/megasource
-        ref: main
+        ref: luajit-syntax
     - id: megasource
       name: Get Megasource Commit SHA
       shell: python
@@ -440,7 +440,7 @@ jobs:
       with:
         path: apple-dependencies
         repository: love2d/love-apple-dependencies
-        ref: main
+        ref: luajit-syntax
     - name: Move Dependencies
       run: |
         mv apple-dependencies/macOS/Frameworks platform/xcode/macosx
@@ -526,7 +526,7 @@ jobs:
       with:
         path: apple-dependencies
         repository: love2d/love-apple-dependencies
-        ref: main
+        ref: luajit-syntax
     - name: Move Dependencies
       run: |
         mv apple-dependencies/iOS/libraries platform/xcode/ios
@@ -563,7 +563,7 @@ jobs:
       with:
         path: app/src/main/cpp/megasource
         repository: love2d/megasource
-        ref: main
+        ref: luajit-syntax
     - name: Checkout
       uses: actions/checkout@v4
       with: