chore: bump org.jetbrains.kotlin:kotlin-gradle-plugin from 1.7.20 to 1.9.20 in /core-sdk-samples/higgs-shop-sample-app #694

Job	Run time
Check PR for semantic target branch / Confirm that target branch for PR is development or build/	5s
Check PR for semantic branch name / Check PR for semantic branch name	0s
Check PR for hardcoded secrets / Run TruffleHog to enumerate possible secrets leakage	10s
Check PR for semantic title / Check PR for semantic title	0s
	15s

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