build: Update dependency com.plotsquared:PlotSquared-Core to v6.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.plotsquared:PlotSquared-Core	6.2.0 -> 6.2.1

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Release Notes

IntellectualSites/PlotSquared

### [`v6.2.1`](https://togithub.com/IntellectualSites/PlotSquared/releases/6.2.1) [Compare Source](https://togithub.com/IntellectualSites/PlotSquared/compare/6.2.0...6.2.1) ##### 🐛 Fixes - Revert "refactor: Address MiniMessage deprecations ([#​3354](https://togithub.com/IntellectualSites/PlotSquared/issues/3354))" [@​NotMyFault](https://togithub.com/NotMyFault) ([#​3371](https://togithub.com/IntellectualSites/PlotSquared/issues/3371)) ##### 📦 Dependency updates - build: Update dependency org.apache.logging.log4j:log4j-api to v2.16.0 [@​renovate](https://togithub.com/renovate) ([#​3368](https://togithub.com/IntellectualSites/PlotSquared/issues/3368)) - build: Update dependency org.checkerframework:checker-qual to v3.20.0 [@​renovate](https://togithub.com/renovate) ([#​3369](https://togithub.com/IntellectualSites/PlotSquared/issues/3369))

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