Create `gitlab_for_jira_app_saas_active` and `gitlab_for_jira_app_self_managed_active` metrics to track usage of GitLab for Jira App

After exploring our Jira related metrics, it appears we don't currently have a metric tracking our GitLab For Jira App integration usage.

We'd like to explore our metrics and capture usage by GitLab SaaS and Gitlab Self-Managed users.

Our PI Metrics today are based on https://metrics.gitlab.com/?q=redis_hll_counters.ecosystem.ecosystem_total_unique_counts_monthly. We need to ensure GitLab for Jira App usage is captured by that metric.

Availability & Testing (Provisional)

• run package-and-qa on MR
• It appears that coverage might be offered by https://gitlab.com/gitlab-org/gitlab/-/blob/master/spec/lib/gitlab/usage_data_counters/hll_redis_counter_spec.rb