Fix refresh lockfile worrkflow pull request title (#4579)

Author: lbdreyer

.github/workflows/refresh-lockfiles.yml

@@ -116,7 +116,7 @@ jobs:
           author: "Lockfile bot <[email protected]>"
           delete-branch: true
           branch: auto-update-lockfiles
-          title: [iris.ci] environment lockfiles auto-update
+          title: "[iris.ci] environment lockfiles auto-update"
           body: |
             Lockfiles updated to the latest resolvable environment.
           labels: |