fix: configure main as both regular and prerelease branch, fetch all branches

Author: strausr

.github/workflows/release.yml

@@ -47,6 +47,7 @@ jobs:
 
       - name: Setup git branch
         run: |
+          git fetch --all --tags
           git checkout -B main
           git branch --set-upstream-to=origin/main main
 

.releaserc.json

@@ -1,6 +1,6 @@
 {
   "branches": [
-    "+([0-9])?(.{+([0-9]),x}).x",
+    "main",
     {
       "name": "main",
       "prerelease": "beta"