Add test report usage ping metrics

Add the test report usage ping event metric
dictionary YAML files that were missed before.

config/metrics/counts_28d/20210413205507_i_testing_summary_widget_total_monthly.yml

+---
+key_path: redis_hll_counters.testing.i_testing_summary_widget_total_monthly
+description: Unique users that expand the test summary merge request widget by month
+product_section: ops
+product_stage: verify
+product_group: group::testing
+product_category: testing
+value_type: number
+status: implemented
+milestone: "13.11"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/59316
+time_frame: 28d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

config/metrics/counts_7d/20210413205507_i_testing_summary_widget_total_weekly.yml

+---
+key_path: redis_hll_counters.testing.i_testing_summary_widget_total_weekly
+description: Unique users that expand the test summary merge request widget by week
+product_section: ops
+product_stage: verify
+product_group: group::testing
+product_category: testing
+value_type: number
+status: implemented
+milestone: "13.11"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/59316
+time_frame: 7d
+data_source: redis_hll
+distribution:
+- ee
+- ce
+tier:
+- free
+- premium
+- ultimate

doc/development/usage_ping/dictionary.md

@@ -13784,6 +13784,30 @@ Status: `data_available`
 
 Tiers: `premium`, `ultimate`
 
+### `redis_hll_counters.testing.i_testing_summary_widget_total_monthly`
+
+Unique users that expand the test summary merge request widget by month
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210413205507_i_testing_summary_widget_total_monthly.yml)
+
+Group: `group::testing`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
+### `redis_hll_counters.testing.i_testing_summary_widget_total_weekly`
+
+Unique users that expand the test summary merge request widget by week
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_7d/20210413205507_i_testing_summary_widget_total_weekly.yml)
+
+Group: `group::testing`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
 ### `redis_hll_counters.testing.i_testing_test_case_parsed_monthly`
 
 Internal Tracking to count number of unit tests parsed for planning of future code testing features. Data available [here](https://app.periscopedata.com/app/gitlab/788674/Verify:Testing-Group-Metrics?widget=10454394&udv=0)