try adding luarocks to PATH for daily

.github/workflows/daily.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-18.04
+          - ubuntu-latest
     steps:
       - uses: leafo/gh-actions-lua@v8.0.0
       - uses: leafo/gh-actions-luarocks@v4.0.0
@@ -28,6 +28,7 @@ jobs:
           sudo add-apt-repository -y ppa:bartbes/love-stable
           sudo apt-get -q update
           sudo apt-get -y install love
+          PATH=$PATH:$GITHUB_WORKSPACE/.luarocks/bin
           sudo luarocks install --server="http://luarocks.org/dev" lua-zip
           sudo luarocks install love-release
       - name: Generate Daily