build: only need to release on ubuntu

Author: adamdecaf

.github/workflows/release.yml

@@ -11,10 +11,7 @@ permissions:
 
 jobs:
   goreleaser:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2