Add snowplow tracking to Releases API

What does this MR do?

Adds snowplow tracking events to the Releases API. The idea is to enable usage tracking for interaction of the release-cli with the API

Related to #296612 (closed)

Screenshots (strongly suggested)

curl "http://localhost:9090/micro/good" | jq '.[] | select(.event.se_category == "API::Releases")| "\(.event.etl_tstamp) \(.event.se_category) \(.event.se_action) \(.event.contexts.data[0].data.extra)"'
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 17477  100 17477    0     0  1896k      0 --:--:-- --:--:-- --:--:-- 1896k
"2021-04-27T01:19:45.452Z API::Releases get_releases {\"status\":200,\"release_cli\":true}"
"2021-04-27T01:19:38.260Z API::Releases get_releases {\"status\":200,\"release_cli\":false}"
"2021-04-27T01:19:15.364Z API::Releases get_release {\"status\":403,\"release_cli\":false}"
"2021-04-27T01:18:35.267Z API::Releases create_release {\"status\":201,\"release_cli\":true}"

Does this MR meet the acceptance criteria?

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Related to #296612 (closed)