def fetch_date_of_tag(tag)
      commit_data = fetch_commit(tag["commit"]["sha"])
      commit_data = stringify_keys_deep(commit_data.to_hash)

      commit_data["commit"]["committer"]["date"]
    end
def fetch_date_of_tag(tag)
      commit_data = fetch_commit(tag["commit"]["sha"])
      commit_data = stringify_keys_deep(commit_data.to_hash)

      commit_data["commit"]["committer"]["date"]
    end
Fetch tag time from repo

 @param [Hash] tag GitHub data item about a Tag

 @return [Time] time of specified tag