Revert change to artifact unit tests

Author: Bastien Abadie

bot/tests/fixtures/test_task_from_group.json

@@ -121,10 +121,7 @@
             "current": 4,
             "total": 8
           },
-          "suite": {
-            "flavor": "mochitest-devtools-chrome-chunked",
-            "name": "mochitest"
-          },
+          "suite": "mochitest-devtools-chrome",
           "treeherder": {
             "jobKind": "test",
             "groupSymbol": "M-e10s",

bot/tests/test_artifacts.py

@@ -102,12 +102,12 @@ def test_download(
     assert mocked_get_task_artifact.call_count == 1
     assert mocked_download_artifact.call_count == 2
     assert mocked_download_artifact.call_args_list[0] == mock.call(
-        "ccov-artifacts/linux_mochitest-4_code-coverage-grcov.zip",
+        "ccov-artifacts/linux_mochitest-devtools-chrome-4_code-coverage-grcov.zip",
         "AN1M9SW0QY6DZT6suL3zlQ",
         "public/test_info/code-coverage-grcov.zip",
     )
     assert mocked_download_artifact.call_args_list[1] == mock.call(
-        "ccov-artifacts/linux_mochitest-4_code-coverage-jsvm.zip",
+        "ccov-artifacts/linux_mochitest-devtools-chrome-4_code-coverage-jsvm.zip",
         "AN1M9SW0QY6DZT6suL3zlQ",
         "public/test_info/code-coverage-jsvm.zip",
     )