Confusing behavior in tag-crates

[fuzzypixelz]

Describe the release item

• If one passes sets dry-run = true in tag-crates and also supplies a version number, then said number will be ignored.
• If one doesn't supply anything, i.e. when dry-run = false and version is empty, then the actions fails.

To make this less confusing:

1. Not supplying setting dry-run should default to a dry-run to avoid accidental live-runs, hence the options should be renamed to live-run and default to false.
2. Not supplying a version should default to auto-generating it from git-describe no matter if live-run is true or false.

This will allow for the simple case of not supplying anything to be a live-run with an auto-generated version.