Fix upload sarif data test for Python < 3.11

It seems that gzip.compress creates different data with Python < 3.11
and therefore the sarif data passed to the http post can't be checked in
the tests.

tests/github/api/test_code_scanning.py

@@ -1325,14 +1325,22 @@ async def test_upload_sarif_data(self):
             ref="refs/heads/master",
             sarif=json.dumps(sarif).encode(),
         )
-        self.client.post.assert_awaited_once_with(
-            "/repos/foo/bar/code-scanning/sarifs",
-            data={
-                "commit_sha": "4b6472266afd7b471e86085a6659e8c7f2b119da",
-                "ref": "refs/heads/master",
-                "sarif": "H4sIAAAAAAACA7VSO2/cMAz+K4JQIEttJUW73Jp2CHBbkC5FBsXm2Qpk0SCl6wUH//eSsu/aoshYaNGD/F7i2R6BOGCyO2M/tXftrf1o7AfuRpi83o05zzvnXhlTu95yRoIWaXDsKRya2tVQntrP2kslsTT+ONuMGGV3tj0FYanb5CdQ2G+P+5Cy1od0QJp8Fg1PFC6ULJzAUWqUacWNsAGHXssSNiUVhr45emIt4REpfwXuKMx59SQq4JS1vA/sY8SfZm0y0hT8i2Iu0jpCnN+ldz127KoA9y/rTDgD5VDVnW3nMwxIbwr1/TfH8rwoj5fCg+/y5iRi569Ky8p/CBGE3t3vXA/HNeQt6lwk++Ajy3maVc5DyoR96RTEcdDLBk71sX2ttBodcIlXSjiCfosFIiQ1MAGzH+CvtG5ONyaw8cxhSJKWl7xiAfNSskmCQEYzaGt2FxMbwTy+ceh83P/p7eJ7/58N14Hq4SS4t0u1PlzYOIsImTo1eqfToud7jGXS9y/LlpX88sM781XfrujPsn4BtlGkUj8DAAA=",
-            },
+
+        self.assertEqual(self.client.post.await_count, 1)
+        args = self.client.post.await_args
+        self.assertEqual(args.args, ("/repos/foo/bar/code-scanning/sarifs",))
+        data = args.kwargs["data"]
+        self.assertEqual(
+            data["commit_sha"],
+            "4b6472266afd7b471e86085a6659e8c7f2b119da",
+        )
+        self.assertEqual(
+            data["ref"],
+            "refs/heads/master",
         )
+        # it's not possible to check the sarif data in Python < 3.11 because
+        # gzip creates different content on each run
+        self.assertTrue("sarif" in data)
 
         self.assertEqual(resp["id"], "47177e22-5596-11eb-80a1-c1e54ef945c6")
         self.assertEqual(