Make the check_misc job name more descriptive

We're going to add check_misc as a required status check, and "checks"
was a bit too vague for matching the job name.

.github/workflows/check_misc.yml

@@ -1,4 +1,4 @@
-name: Miscellaneous checks
+name: Miscellaneous
 on: [push, pull_request, merge_group]
 
 concurrency:
@@ -10,6 +10,8 @@ permissions:
 
 jobs:
   checks:
+    name: Miscellaneous checks
+
     permissions:
       contents: write # for Git to git push