refactor: replace as assertions (#22442)

lib/config/migrations/custom/dep-types-migration.ts

lib/modules/datasource/docker/index.spec.ts

lib/modules/manager/gitlabci-include/common.ts

...ules/manager/gradle/extract/consistent-versions-plugin.ts

lib/modules/manager/gradle/utils.spec.ts

lib/modules/platform/azure/index.ts

lib/modules/platform/gitea/index.spec.ts

lib/modules/platform/github/index.spec.ts

lib/util/exec/docker/index.spec.ts

lib/util/exec/hermit.ts

lib/util/github/graphql/datasource-fetcher.spec.ts

lib/util/host-rules.spec.ts

lib/util/host-rules.ts

lib/workers/repository/extract/index.spec.ts

lib/workers/repository/finalize/prune.spec.ts

lib/workers/repository/init/index.spec.ts

lib/workers/repository/onboarding/pr/pr-list.spec.ts

lib/workers/repository/process/limits.spec.ts

lib/workers/repository/update/branch/automerge.spec.ts

lib/workers/repository/update/branch/check-existing.spec.ts