Switching to github.event.number as issue.number not always work (#46018)

.github/workflows/pr-checks.yml

@@ -13,7 +13,7 @@ on:
       - milestoned
       - demilestoned
 concurrency:
-  group: pr-checks-${{ github.event.issue.number }}
+  group: pr-checks-${{ github.event.number }}
 jobs:
   main:
     runs-on: ubuntu-latest

.github/workflows/pr-commands-closed.yml

@@ -4,7 +4,7 @@ on:
     types:
       - closed      
 concurrency:
-  group: pr-commands-closed-${{ github.event.issue.number }}
+  group: pr-commands-closed-${{ github.event.number }}
 jobs:
   close_job:
     # this job will only run if the PR has been closed without being merged

.github/workflows/pr-commands.yml

@@ -5,7 +5,7 @@ on:
       - opened
       - synchronize
 concurrency:
-  group: pr-commands-${{ github.event.issue.number }}
+  group: pr-commands-${{ github.event.number }}
 jobs:
   main:
     runs-on: ubuntu-latest