fix(vdev): release prepare vrl version pinning (#24158)

* Add --dry-run to release prepare

* Add error handling and checks to pin_vrl_version

* Add wrapper to toml

* Remove wrapper, parse as Table instead

* Fix vrl pinning logic

* Enable preserve_order feature in toml crate

* Use dependency instead of whole toml

* Fix dry run docs

* Fix dry run wording

* refactor to use toml_edit

* Add update_vrl_to_version to add unit test

* Use indoc in prepare.rs

* Remove preserve_order feature