simplify publish step

Author: cornerman

.github/workflows/build.yml

@@ -40,12 +40,7 @@ jobs:
     # if this is a pull request, run only when 'publish' label is set
     if: (github.event_name != 'pull_request' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/v'))) || 
       (github.event_name == 'pull_request' &&  contains(github.event.pull_request.labels.*.name, 'publish'))
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-        scala: [2.13.12]
-        java: [[email protected]]
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
         with: