fix: ta_timeseries flake set and dict

when we get bytes out of the DB using django it returns them as a
memoryview so if you want the actual values in bytes you must call
the bytes constructor on the memoryview

Author: joseph-sentry

services/test_analytics/ta_timeseries.py

@@ -21,16 +21,17 @@
 
 
 def get_flaky_tests_set(repo_id: int) -> set[bytes]:
-    return set(
-        Flake.objects.filter(repoid=repo_id, end_date__isnull=True)
+    return {
+        bytes(test_id)
+        for test_id in Flake.objects.filter(repoid=repo_id, end_date__isnull=True)
         .values_list("test_id", flat=True)
         .distinct()
-    )
+    }
 
 
 def get_flaky_tests_dict(repo_id: int) -> dict[bytes, FlakeInfo]:
     return {
-        flake.test_id: FlakeInfo(flake.fail_count, flake.count)
+        bytes(flake.test_id): FlakeInfo(flake.fail_count, flake.count)
         for flake in Flake.objects.filter(repoid=repo_id, end_date__isnull=True)
     }