Fixes #38115 - Drop Ruby 2.7 support #2354

Job	Run time
Setup matrix	5s
Rubocop	1m 9s
test:units - Ruby 3.0 and Node 18 on PostgreSQL 13	11m 47s
test:functionals - Ruby 3.0 and Node 18 on PostgreSQL 13	8m 18s
test:graphql - Ruby 3.0 and Node 18 on PostgreSQL 13	1m 46s
webpack:compile test:integration - Ruby 3.0 and Node 18 on PostgreSQL 13	11m 16s
db:seed - Ruby 3.0 and Node 18 on PostgreSQL 13	1m 21s
assets:precompile RAILS_ENV=production DATABASE_URL=nulldb://nohost - Ruby 3.0 and Node 18 on PostgreSQL 13	2m 52s
test:external - Ruby 3.0 and Node 18 on PostgreSQL 13	1m 47s
Katello / Setup matrix	5s
Katello / test:katello - Foreman refs/pull/10406/merge with Ruby 3.0 and Node 18 on PostgreSQL 13	25m 43s
Katello / Existing database - Foreman ${{ inputs.foreman_version }} with Ruby ${{ matrix.ruby }} and Node ${{ matrix.node }} on PostgreSQL ${{ matrix.postgresql }}	0s
Katello / db:seed - Foreman refs/pull/10406/merge with Ruby 3.0 and Node 18 on PostgreSQL 13	1m 50s
Katello / plugin:assets:precompile[katello] RAILS_ENV=production DATABASE_URL=nulldb://nohost - Foreman refs/pull/10406/merge with Ruby 3.0 and Node 18 on PostgreSQL 13	6m 59s
Katello / Test suite	2s
Test suite	2s
	1h 15m 2s

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