feat(doc): Update health-check inbound filter API documentation (#52008)

src/sentry/apidocs/parameters.py

@@ -237,6 +237,7 @@ ways which then cause errors that are unlikely to be seen by a normal user.
 - `legacy-browser`: Filter out known errors from legacy browsers. Older browsers often give less
 accurate information, and while they may report valid issues, the context to understand them is
 incorrect or missing.
+- `filtered-transaction`: Filter out transactions for healthcheck and ping endpoints.
 """,
     )
 
@@ -245,7 +246,7 @@ incorrect or missing.
         location="query",
         required=False,
         type=bool,
-        description="Toggle the browser-extensions, localhost, or web-crawlers filter on or off.",
+        description="Toggle the browser-extensions, localhost, web-crawlers, or filtered-transaction  filter on or off.",
     )
 
     BROWSER_SDK_VERSION = OpenApiParameter(