Add message to label enforcer

.github/workflows/enforce-labels.yml

@@ -16,6 +16,8 @@ jobs:
           count: 1
           labels: "0 diff,0 diff trivial,Non 0-diff,0 diff structural,0-diff trivial,Not 0-diff,0-diff,automatic,0-diff uncoupled,github_actions"
           add_comment: true
+          message: "This PR is being prevented from merging because have not added one of our required labels: {{ provided }}. Please add one so that the PR can be merged."
+
   blocking-label:
     runs-on: ubuntu-latest
     steps:
@@ -27,3 +29,4 @@ jobs:
           count: 0
           labels: "Contingent - DNA,Needs Lead Approval,Contingent -- Do Not Approve"
           add_comment: true
+          message: "This PR is being prevented from merging because you have added one of our blocking labels: {{ provided }}. You'll need to remove it before this PR can be merged."

CHANGELOG.md

@@ -19,10 +19,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Update `components.yaml`
   - ESMA_cmake v3.22.0 (defines stricter debug flags for Intel)
 - Reduced amount of CI tests to reduce cost
+- Added `message` to label enforcer (requires v3)
 
 ### Fixed
 
-- Fixed procedure "find" in CFIOCollection.F90 that was missing a _RETURN(_SUCCESS) at the end
+- Fixed procedure "find" in CFIOCollection.F90 that was missing a `_RETURN(_SUCCESS)` at the end
 
 ### Removed