fix(eap): Ensure count has type integer (#81031)

Snuba started returning Int64 instead of UInt64 for count() on EAP
through SnQL. Make sure to support that correctly.

Author: Zylphrex

src/sentry/utils/snuba.py

@@ -1674,6 +1674,9 @@ def resolve_complex_column(col, resolve_func, ignored):
     "UInt16": "integer",
     "UInt32": "integer",
     "UInt64": "integer",
+    "Int16": "integer",
+    "Int32": "integer",
+    "Int64": "integer",
     "Float32": "number",
     "Float64": "number",
     "DateTime": "date",

tests/snuba/api/endpoints/test_organization_events_span_indexed.py

@@ -562,6 +562,19 @@ def test_query_for_missing_tag(self):
         assert response.status_code == 200, response.content
         assert response.data["data"] == [{"foo": "", "count()": 1}]
 
+    def test_count_field_type(self):
+        response = self.do_request(
+            {
+                "field": ["count()"],
+                "project": self.project.id,
+                "dataset": self.dataset,
+            }
+        )
+        assert response.status_code == 200, response.content
+        assert response.data["meta"]["fields"] == {"count()": "integer"}
+        assert response.data["meta"]["units"] == {"count()": None}
+        assert response.data["data"] == [{"count()": 0}]
+
     def test_simple_measurements(self):
         keys = [
             ("app_start_cold", "duration", "millisecond"),