bugfix clean_release_notes.py (#1801)

* bugfix clean_release_notes.py

1) Developers name needs to be consistent or else it wont find that dict entry

2) need to handle escape char of regex

* Update clean_release_notes.py

Author: HDCharles

scripts/clean_release_notes.py

@@ -82,7 +82,7 @@
 VERBOSE = os.getenv("VERBOSE", "true").lower() == "true"
 GITHUB_LABEL_TO_CATEGORY = {
     "topic: bc-breaking": "BC Breaking",
-    "topic: deprecation": "Deprecation",
+    "topic: deprecation": "Deprecations",
     "topic: new feature": "New Features",
     "topic: improvement": "Improvement",
     "topic: bug fix": "Bug Fixes",
@@ -223,7 +223,7 @@ def format_commit(commit_line: str) -> str:
       After:  * Commit title (https://github.com/pytorch/ao/pull/123)
     """
     # Remove author, put PR link in parentheses
-    commit_line = re.sub(" by @.* in (.*)", " (\g<1>)", commit_line)
+    commit_line = re.sub(" by @.* in (.*)", r" (\\g<1>)", commit_line)
     # Capitalize first letter
     commit_line = commit_line.lstrip("* ")
     commit_line = "* " + commit_line[0].upper() + commit_line[1:]