feat: ansible-galaxy datasource and manager (#5301)

docs/usage/configuration-options.md

lib/constants/data-binary-source.ts

lib/datasource/ansible-galaxy/__fixtures__/empty

lib/datasource/ansible-galaxy/__fixtures__/timezone

...atasource/ansible-galaxy/__snapshots__/index.spec.ts.snap

lib/datasource/ansible-galaxy/index.spec.ts

lib/datasource/ansible-galaxy/index.ts

lib/manager/ansible-galaxy/__fixtures__/helmRequirements.yml

lib/manager/ansible-galaxy/__fixtures__/requirements01.yml

lib/manager/ansible-galaxy/__fixtures__/requirements02.yml

...manager/ansible-galaxy/__snapshots__/extract.spec.ts.snap

lib/manager/ansible-galaxy/extract.spec.ts

lib/manager/ansible-galaxy/extract.ts

lib/manager/ansible-galaxy/index.ts

lib/manager/ansible-galaxy/update.spec.ts

lib/manager/ansible-galaxy/update.ts