Allow forcing the use of the generic updater in extra-files

[LoicFerrot]

Is your feature request related to a problem? Please describe.
Since #2072, any JSON, XML, YAML or TOML file is updated using their corresponding updater, meaning that the value of a top level version key, if existing, is bumped. It should be possible to override this default behavior.

My use case is to bump a docker image tag in a docker-compose.yaml file, that contains a top-level version key, like such:

# docker-compose.yaml
version: "3.8"  # Docker version: https://docs.docker.com/compose/compose-file/04-version-and-name/

services:
  my-service:
    ...
    image: my-org/my-repo:v0.1.0 # x-release-please-version

I tried two things:

"extra-files": ["docker-compose.yaml"]

When using this config, the version: "3.8" is replaced by version: v0.1.1, and the image value is left untouched.

"extra-files": [
  {
    "type": "yaml",
    "path": "docker-compose.yaml",
    "jsonpath": "services.my-service.image"
  }
]

When using this second config, the image value is transformed to v0.1.1, deleting the my-org/my-repo: part.

Describe the solution you'd like
Allow something like this, that won't attempt to modify the top-level version:

"extra-files": [
  {
    "type": "generic",
    "path": "docker-compose.yaml"
  }
]

Describe alternatives you've considered
As specified there, the version key is not strictly necessary for a docker-compose file, so removing this key leads to the desired behavior. However, this is only a temporary workaround.

[regseb]

The jsonpath must begin with a $. You'll get an error because jsonpath library doesn't support - (dchester/jsonpath#90 (comment)):

Error: release-please failed: Lexical error on line 1. Unrecognized text.
$.services.my-service.image
-------------^

The property must be enclosed in quotes:

"extra-files": [
  {
    "type": "yaml",
    "path": "docker-compose.yaml",
    "jsonpath": "$.services[\"my-service\"].image"
  }
]

[philippeboyd]

@regseb this won't work with type as it will reformat the file, remove comments and purge quotes as per issues https://github.com/google-github-actions/release-please-action/issues/896 and #2195

We would want to keep the generic updater with yaml files if we want or prevent the yaml updater from reformating the whole file when setting the new version