checkout repo to make commit/PR. Trigger if update-lockfile.yml changes.

.github/workflows/update-lockfile.yml

@@ -9,6 +9,7 @@ on:
     paths:
       - "pyproject.toml"
       - "environments/*"
+      - ".github/workflows/update-lockfile.yml"
 
 # What branch does this action run on?
 # - workflow_dispatch: Whatever branch it was run against.
@@ -66,6 +67,10 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.PUDL_BOT_PAT }}
+          ref: ${{ env.GITHUB_REF }}
       - name: Commit updated conda lockfiles
         uses: stefanzweifel/git-auto-commit-action@v5
         with:
@@ -83,6 +88,10 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.PUDL_BOT_PAT }}
+          ref: ${{ env.GITHUB_REF }}
       - uses: peter-evans/create-pull-request@v5
         with:
           commit-message: "Update conda-lock.yml and rendered conda environment files."