PYTHON-4906 Add branch creation workflow to Python Driver (#1971)

.github/workflows/create-release-branch.yml

@@ -0,0 +1,55 @@
+name: Create Release Branch
+
+on:
+  workflow_dispatch:
+    inputs:
+        branch_name:
+          description: The name of the new branch
+          required: true
+        version:
+          description: The version to set on the branch
+          required: true
+        base_ref:
+          description: The base reference for the branch
+        push_changes:
+          description: Whether to push the changes
+          default: "true"
+
+concurrency:
+  group: create-branch-${{ github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash -eux {0}
+
+jobs:
+  create-branch:
+    environment: release
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: write
+    outputs:
+      version: ${{ steps.pre-publish.outputs.version }}
+    steps:
+      - uses: mongodb-labs/drivers-github-tools/secure-checkout@v2
+        with:
+          app_id: ${{ vars.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+      - uses: mongodb-labs/drivers-github-tools/setup@v2
+        with:
+          aws_role_arn: ${{ secrets.AWS_ROLE_ARN }}
+          aws_region_name: ${{ vars.AWS_REGION_NAME }}
+          aws_secret_id: ${{ secrets.AWS_SECRET_ID }}
+          artifactory_username: ${{ vars.ARTIFACTORY_USERNAME }}
+      - uses: mongodb-labs/drivers-github-tools/create-branch@v2
+        id: create-branch
+        with:
+          branch_name: ${{ inputs.branch_name }}
+          version: ${{ inputs.version }}
+          base_ref: ${{ inputs.base_ref }}
+          push_changes: ${{ inputs.push_changes }}
+          version_bump_script: hatch version
+          evergreen_project: mongo-python-driver-release
+          release_workflow_path: ./.github/workflows/release-python.yml