fix(contexts): Normalize browser and os names with missing versions

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+**Bug Fixes**:
+
+- Normalize OS and Browser names in contexts when missing a version. ([#4957](https://github.com/getsentry/relay/pull/4957))
+
 **Internal**:
 
 - Emit outcomes for skipped large attachments on playstation crashes. ([#4862](https://github.com/getsentry/relay/pull/4862))

py/tests/test_processing.py

@@ -126,7 +126,7 @@ def test_normalize_user_agent(must_normalize):
                 "version": "15.0.1",
                 "type": "browser",
             },
-            "client_os": {"name": "Ubuntu", "type": "os"},
+            "client_os": {"name": "Ubuntu", "os": "Ubuntu", "type": "os"},
         }
     else:
         assert "contexts" not in event