fix: Logging - Welcome should use DMS_RELEASE ENV

[polarathene]

Description

I missed this change for #3666

This should only leave .gitattributes and .dockerignore files referencing VERSION, and VERSION file itself remaining reachable from the repo until maintainers feel comfortable with dropping support for earlier releases update-check.sh compatibility. (EDIT: Tracking issue opened)

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Annnnd I just realized I didn't update VERSION myself with the release after all of this 😆

Should I add that here too? (EDIT: Added)

• It shouldn't require a new tagged release like the previous time that happened.
• Any release newer than v13.0.0 will now check from GH Releases thankfully.

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Queued for v13.1:

• Unless a harmless log message fix warrants another patch release 🤷‍♂️
• The VERSION file bump will be effective without depending on publishing a new release.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Improvement (non-breaking change that does improve existing functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• New and existing unit tests pass locally with my changes
• I have added information about changes made in this PR to CHANGELOG.md