Update c-cpp.yml

Author: masx200

.github/workflows/c-cpp.yml

@@ -72,7 +72,7 @@ jobs:
             - run: deno task cache
             - uses: xmake-io/github-action-setup-xmake@v1
               with:
-                  xmake-version: latest
+                  xmake-version: branch@dev
                   actions-cache-folder: ".xmake-cache"
 
             - run: deno run -A xmake.ts --toolchain=llvm --sdk=/usr/local/opt/llvm/