rapid7-insightidr 1.11.1: strip whitespace from comma-separated filter params

"HIGH, CRITICAL" as typed sent " CRITICAL" to the API, which rejects
the whole call — a priority filter written naturally fetched nothing.
Normalize statuses/priorities/sources/tags in list_investigations,
get_investigations_full and search_investigation_alerts before the URL.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L1fWBoEKvAw3k78XDkpRQo

integrations/rapid7-insightidr/scripts/search_investigation_alerts.py

@@ -121,8 +121,10 @@ def run():
     inv_page = request("GET", "idr/v2/investigations", params={
         "index": inp.get("index") or "0",
         "size": inp.get("page_size") or limit,
-        "statuses": inp.get("statuses"),
-        "priorities": inp.get("priorities"),
+        # ",".join(_list(...)): the API rejects the whole call when a list value
+        # carries whitespace, so "HIGH, CRITICAL" as typed must lose its space.
+        "statuses": ",".join(_list(inp.get("statuses"))) or None,
+        "priorities": ",".join(_list(inp.get("priorities"))) or None,
         "start_time": start_time,
         "end_time": inp.get("end_time"),
         "sort_field": "Created time",