Add owners to service catalog

Add Reliability teams to teams.yml and add new owner field to service catalog for gitlab-com/gl-infra/scalability#2170 (closed).

Ownership

Service ownership is assigned based on the following:

• https://about.gitlab.com/handbook/engineering/infrastructure/team/reliability/general.html#ownership
• https://about.gitlab.com/handbook/engineering/infrastructure/team/reliability/observability.html#services-we-own
• https://about.gitlab.com/handbook/engineering/infrastructure/team/reliability/foundations.html#ownership
• https://about.gitlab.com/handbook/engineering/infrastructure/team/reliability/practices.html#ownership

Full list is available at https://docs.google.com/spreadsheets/d/17vv2nVKE0qdVUrHfLauP6G5x4eHiyjewdfpMGZ80vN8/edit#gid=0.