Initiate 3.0.x branch

Author: snicoll

.github/workflows/build-and-deploy-snapshot.yml

@@ -2,7 +2,7 @@ name: Build and Deploy Snapshot
 on:
   push:
     branches:
-      - main
+      - 3.0.x
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
 jobs:

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 on:
   push:
     branches:
-      - main
+      - 3.0.x
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
 jobs: