ci: Update the release process for v1 release (#6366)

* release 1.0.0-rc from release-v1 branch.
* allow creating major releases
* disable merging releases back into master

.github/workflows/docker-image-v1-rc.yml

@@ -12,6 +12,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
+          ref: release-v1
 
       - uses: pnpm/action-setup@v2.2.4
       - uses: actions/setup-node@v3