feat: DatasourceError (#5475)

lib/datasource/cargo/index.ts

lib/datasource/cdnjs/index.ts

lib/datasource/common.ts

lib/datasource/dart/index.ts

lib/datasource/docker/index.ts

lib/datasource/gradle-version/index.ts

lib/datasource/helm/index.ts

lib/datasource/hex/index.ts

lib/datasource/index.ts

lib/datasource/maven/util.ts

lib/datasource/npm/get.ts

lib/datasource/packagist/index.ts

lib/datasource/ruby-version/index.ts

lib/datasource/rubygems/get-rubygems-org.ts

lib/datasource/rubygems/get.ts