CLDC-4236: rename pull_request_id input -> pr_number for consistency

.github/workflows/review_pipeline.yml

@@ -5,7 +5,7 @@ on:
     types: [created]
   workflow_dispatch:
     inputs:
-      pull_request_id:
+      pr_number:
         required: true
         type: string
         description: "The number of the PR for which to deploy a review app. Note: this is NOT the ticket number"
@@ -26,7 +26,7 @@ jobs:
         with:
           script: |
             if (context.eventName === 'workflow_dispatch') {
-              core.setOutput('pr_number', '${{ inputs.pull_request_id }}');
+              core.setOutput('pr_number', '${{ inputs.pr_number }}');
             } else {
               core.setOutput('pr_number', context.issue.number.toString());
             }