refactor: Separate file addition and deletion data structures (#13638)

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

lib/manager/batect-wrapper/artifacts.ts

lib/manager/bundler/artifacts.spec.ts

lib/manager/bundler/artifacts.ts

lib/manager/cargo/artifacts.ts

lib/manager/cocoapods/__snapshots__/artifacts.spec.ts.snap

lib/manager/cocoapods/artifacts.spec.ts

lib/manager/cocoapods/artifacts.ts

lib/manager/composer/artifacts.spec.ts

lib/manager/composer/artifacts.ts

...anager/git-submodules/__snapshots__/artifact.spec.ts.snap

lib/manager/git-submodules/artifact.spec.ts

lib/manager/git-submodules/artifacts.ts

lib/manager/gomod/__snapshots__/artifacts.spec.ts.snap

lib/manager/gomod/artifacts.spec.ts

lib/manager/gomod/artifacts.ts

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

lib/manager/gradle-wrapper/artifacts.ts

lib/manager/helmv3/__snapshots__/artifacts.spec.ts.snap

lib/manager/helmv3/artifacts.spec.ts