[release] switch to ubuntu-latest

Author: sunshowers

.github/workflows/release.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   create-release:
     if: github.repository_owner == 'sunshowers-code'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
         with: