fix: skip PR review comment collection when pull requests are disabled

Builds on augurlabs#3783 (check_prs_enabled infrastructure). Applies the same
disabled-PR check to collect_pull_request_review_comments, which hits
the repos/{owner}/{repo}/pulls/comments endpoint — this also returns
404 when PRs are disabled and had no prior handling.

Also migrates the URL construction to use GithubDataAccess.endpoint_url()
following the pattern established in retrieve_all_pr_data.

Author: mn-ram

augur/tasks/github/pull_requests/tasks.py

@@ -227,23 +227,31 @@ def collect_pull_request_review_comments(repo_git: str, full_collection: bool) -
     """
     owner, repo = get_owner_repo(repo_git)
 
-    review_msg_url = f"https://api.github.com/repos/{owner}/{repo}/pulls/comments"
-
     logger = logging.getLogger(collect_pull_request_review_comments.__name__)
     logger.debug(f"Collecting pull request review comments for {owner}/{repo}")
 
+    key_auth = GithubRandomKeyAuth(logger)
+    github_data_access = GithubDataAccess(key_auth, logger)
+
+    if not github_data_access.check_prs_enabled(owner, repo):
+        logger.info(f"{owner}/{repo}: Pull requests appear to be disabled for this repo. Skipping review comment collection.")
+        return
+
     repo_id = get_repo_by_repo_git(repo_git).repo_id
 
+    search_args = {}
     if not full_collection:
         last_collected_date = get_secondary_data_last_collected(repo_id)
 
         if last_collected_date:
             # Subtract 2 days to ensure all data is collected
             core_data_last_collected = (last_collected_date - timedelta(days=2)).replace(tzinfo=timezone.utc)
-            review_msg_url += f"?since={core_data_last_collected.isoformat()}"
+            search_args["since"] = core_data_last_collected.isoformat()
         else:
             logger.warning(f"core_data_last_collected is NULL for recollection on repo: {repo_git}")
 
+    review_msg_url = github_data_access.endpoint_url(f"repos/{owner}/{repo}/pulls/comments", search_args or None)
+
     pr_reviews = get_pull_request_reviews_by_repo_id(repo_id)
 
     # Build mapping once: github pr_review_src_id -> augur pr_review_id
@@ -257,9 +265,6 @@ def collect_pull_request_review_comments(repo_git: str, full_collection: bool) -
     tool_version = "2.0"
     data_source = "Github API"
 
-    key_auth = GithubRandomKeyAuth(logger)
-    github_data_access = GithubDataAccess(key_auth, logger)
-
     pr_review_comment_batch_size = get_batch_size()
 
     # Batch processing: accumulate comments until batch size reached, then flush