docs: replace `defaultCollection` with `schematicCollections` (#45406)
docs: replace `defaultCollection` with `schematicCollections` (#45406)

`defaultCollection` has deprecated in favor of `schematicCollections`.

Related to https://github.com/angular/angular-cli/pull/22860

PR Close #45406

angular/angular,gkalpak/angular,gnomeontherun/angular,angular/angular,gnomeontherun/angular,gnomeontherun/angular,gkalpak/angular,gkalpak/angular,angular/angular,gkalpak/angular,JiaLiPassion/angular,JiaLiPassion/angular,angular/angular,angular-indonesia/angular,angular-indonesia/angular,angular-indonesia/angular,JiaLiPassion/angular,angular-indonesia/angular,JiaLiPassion/angular,gnomeontherun/angular