Update branch name in sync-back-to-dev workflow

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

.github/workflows/sync-back-to-dev.yml

@@ -13,6 +13,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Opening pull request
-        run: gh pr create -B dev -H master --title 'Sync master back into development' --body 'Created by Github action' --label 'internal'
+        run: gh pr create -B development -H master --title 'Sync master back into development' --body 'Created by Github action' --label 'internal'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}