Update ephemeral environment workflow with dependency mapping (#376)

* I keep forgetting that it's... `-charts`.

* Always run create-branch, add dependency for sync

.github/workflows/_ephemeral_environment_manager.yml

@@ -43,7 +43,6 @@ jobs:
 
   create-branch:
     name: Create Branch
-    if: ${{ inputs.create_branch }}
     runs-on: ubuntu-24.04
     needs: check-run
     steps:
@@ -62,7 +61,7 @@ jobs:
       - name: Checkout Ephemeral Environment Charts
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
-          repository: bitwarden/ephemeral-environments
+          repository: bitwarden/ephemeral-environment-charts
           token: '${{ steps.retrieve-secrets.outputs.github-pat-bitwarden-devops-bot-repo-scope }}'
 
       - name: Create Branch
@@ -117,7 +116,9 @@ jobs:
     name: Sync Ephemeral Environment
     if: ${{ inputs.sync_environment }}
     runs-on: ubuntu-24.04
-    needs: check-run
+    needs: 
+      - check-run
+      - create-branch
     steps:
       - name: Login to Azure - Prod Subscription
         uses: Azure/login@a65d910e8af852a8061c627c456678983e180302 # v2.2.0