ci: ignore integration test projects in renovate
ci: ignore integration test projects in renovate

Renovate is never able to fully/properly update integration
test projects as they are technically invalid (due to e.g.
`file:../../whatever` version installs).

We should just skip these tests as they should rarely need
updates anyway, and since that makes Renovate happy and not
complain about broken updates/invalid artifacts.

angular/dev-infra,angular/dev-infra,angular/dev-infra,angular/dev-infra