triage: allow blank-line no_autobump removals

Author: GunniBusch

.github/workflows/triage.yml

@@ -192,11 +192,11 @@ jobs:
 
             - label: CI-syntax-only
               path: Formula/.+
-              patch_content: '^(?:(?:--- \S+|\+\+\+ \S+|[+-]  no_autobump! because: [^\n]+)\n?)+$'
+              patch_content: '^(?:(?:--- \S+|\+\+\+ \S+|[+-]  no_autobump! because: [^\n]+|[+-])\n?)+$'
 
             - label: autobump
               path: Formula/.+
-              patch_content: '^(?:(?:--- \S+|\+\+\+ \S+|[+-]  no_autobump! because: [^\n]+)\n?)+$'
+              patch_content: '^(?:(?:--- \S+|\+\+\+ \S+|[+-]  no_autobump! because: [^\n]+|[+-])\n?)+$'
               keep_if_no_match: true
 
             - label: boost