Bump org.spongepowered.gradle.vanilla from 0.2.1-SNAPSHOT to 0.3.1-SNAPSHOT in /Plan#4407

dependabot[bot] wants to merge 1 commit intomasterplan-player-analytics/Plan:masterfrom

dependabot/gradle/Plan/org.spongepowered.gradle.vanilla-0.3.1-SNAPSHOTplan-player-analytics/Plan:dependabot/gradle/Plan/org.spongepowered.gradle.vanilla-0.3.1-SNAPSHOTCopy head branch name to clipboard