build: disable renovate lock file maintenance (#24794)
build: disable renovate lock file maintenance (#24794)

We found renovate lock file maintenance to be non-ideal for our
branching in Angular. Going forward we will disable this and start
managing the lock file manually like in the past.
angular/components,crisbeto/material2,crisbeto/material2,angular/components,crisbeto/material2,angular/components,angular/components,crisbeto/material2