refactor(http): Separate `getJson` and `getJsonUnchecked` (#33651)

lib/config/presets/github/index.ts

lib/config/presets/gitlab/index.ts

lib/config/presets/npm/index.ts

lib/modules/datasource/bitbucket-tags/index.ts

lib/modules/datasource/conan/index.ts

lib/modules/datasource/conda/index.ts

lib/modules/datasource/crate/index.ts

lib/modules/datasource/custom/formats/json.ts

lib/modules/datasource/dart-version/index.ts

lib/modules/datasource/dart/index.ts

lib/modules/datasource/docker/common.ts

lib/modules/datasource/docker/index.ts

lib/modules/datasource/flutter-version/index.ts

lib/modules/datasource/github-release-attachments/index.ts

lib/modules/datasource/github-tags/index.ts

lib/modules/datasource/gitlab-packages/index.ts

lib/modules/datasource/gitlab-releases/index.ts

lib/modules/datasource/gitlab-tags/index.ts

lib/modules/datasource/go/releases-goproxy.ts

lib/modules/datasource/gradle-version/index.ts