Fix more yaml lint errors (#27284) (#27288)

Backport #27284 by @lunny

Fix #27268

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

models/fixtures/reaction.yml

@@ -1,5 +1,5 @@
 -
-  id: 1 #issue reaction
+  id: 1 # issue reaction
   type: zzz # not allowed reaction (added before allowed reaction list has changed)
   issue_id: 1
   comment_id: 0
@@ -7,7 +7,7 @@
   created_unix: 1573248001
 
 -
-  id: 2 #issue reaction
+  id: 2 # issue reaction
   type: zzz # not allowed reaction (added before allowed reaction list has changed)
   issue_id: 1
   comment_id: 0
@@ -15,7 +15,7 @@
   created_unix: 1573248002
 
 -
-  id: 3 #issue reaction
+  id: 3 # issue reaction
   type: eyes # allowed reaction
   issue_id: 1
   comment_id: 0
@@ -23,7 +23,7 @@
   created_unix: 1573248003
 
 -
-  id: 4 #comment reaction
+  id: 4 # comment reaction
   type: laugh # allowed reaction
   issue_id: 1
   comment_id: 2
@@ -31,7 +31,7 @@
   created_unix: 1573248004
 
 -
-  id: 5 #comment reaction
+  id: 5 # comment reaction
   type: laugh # allowed reaction
   issue_id: 1
   comment_id: 2