feat(onboarding): Add missing python platforms (#55347)

Add platform definitions for `python-aiohttp`, `python-chalice`,
`python-falcon`, `python-quart`, `python-tryton`, `python-wsgi` and
`python-serverless`.

Relates to: https://github.com/getsentry/sentry/pull/55346

src/sentry/utils/platform_categories.py

@@ -103,6 +103,12 @@ BACKEND = [
     "python-starlette",
     "python-sanic",
     "python-celery",
+    "python-aiohttp",
+    "python-chalice",
+    "python-falcon",
+    "python-quart",
+    "python-tryton",
+    "python-wsgi",
     "python-bottle",
     "python-pylons",
     "python-pyramid",
@@ -119,6 +125,7 @@ SERVERLESS = [
     "python-awslambda",
     "python-azurefunctions",
     "python-gcpfunctions",
+    "python-serverless",
     "node-awslambda",
     "node-azurefunctions",
     "node-gcpfunctions",