Renovate[bot]: Update dependency terser to v5.23.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
terser (source)	5.22.0 -> 5.23.0

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Pre-merge checks

• [x] Make sure the GitHub Actions tests are passing.

• [x] Run bin/compare-build-branch.sh locally on this branch and confirm that this PR is not causing unexpected changes to the build. Requirements to run this script: grunt build and nvm.

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Release Notes

terser/terser (terser)

### [`v5.23.0`](https://togithub.com/terser/terser/blob/HEAD/CHANGELOG.md#v5230) [Compare Source](https://togithub.com/terser/terser/compare/v5.22.0...v5.23.0) - When top_retain will keep a variable assignment around, inline the assignee when it's shorter than the name ([#​1434](https://togithub.com/terser/terser/issues/1434)) - Remove empty class `static {}` blocks.

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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This PR has been generated by Mend Renovate. View repository job log here.

[mattyrob]

Local run of bin/compare-build-branch.sh renovate/terser-5.x returned:

Diff results for branch: renovate/terser-5.x
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       0 build-compare.diff