chore(deps): update plugin com.diffplug.spotless to v6.23.3 #915

Job	Run time
prepare-release / 🛫 Prepare release	12s
🔨 Build and test backend service / gateway	2m 0s
🔨 Build and push Docker image / gateway	17s
github-release / 🎉 Release	0s
	2m 29s

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