GHA: Try to fix wasm build.

.github/workflows/main.yml

@@ -164,6 +164,7 @@ jobs:
         run: |
           cd bgfx
           ../bx/tools/bin/linux/genie --with-examples --gcc=wasm gmake
+          cd ..
           docker run --rm -u $(id -u):$(id -g) -v $(pwd):/bgfx emscripten/emsdk make --no-print-directory -C .build/projects/gmake-wasm config=${{ matrix.config }} -j$(nproc) EMSCRIPTEN=/emsdk/upstream/emscripten
       - name: Check
         run: |