refactor: convert all path to upath (#7712)

lib/config/file.spec.ts

lib/config/file.ts

lib/config/index.spec.ts

lib/datasource/maven/index.spec.ts

lib/datasource/sbt-package/index.spec.ts

lib/datasource/sbt-plugin/index.spec.ts

lib/manager/bazel/update.spec.ts

lib/manager/cdnurl/extract.spec.ts

lib/manager/cocoapods/extract.spec.ts

lib/manager/deps-edn/extract.spec.ts

lib/manager/droneci/extract.spec.ts

lib/manager/gradle-wrapper/artifacts-real.spec.ts

lib/manager/gradle-wrapper/artifacts.spec.ts

lib/manager/gradle-wrapper/artifacts.ts

lib/manager/gradle-wrapper/extract.spec.ts

lib/manager/gradle/gradle-updates-report.spec.ts

lib/manager/gradle/gradle-updates-report.ts

lib/manager/html/extract.spec.ts

lib/manager/leiningen/extract.spec.ts

lib/manager/maven/extract.spec.ts