chore(committed): increase subject length to 72

50 is a tad too short, 72 reaps benefits well enough.
72 is what we had with gitlint, too.

Author: scop

.config/committed.toml

@@ -1,3 +1,4 @@
 style = "conventional"
 ignore_author_re = '\[bot\]'
+subject_length = 72
 subject_capitalized = false