chore: bump kotlin-gradle-plugin from 1.7.20 to 1.7.21 in /core-sdk-samples/higgs-shop-sample-app#150

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dependabot/gradle/core-sdk-samples/higgs-shop-sample-app/chore/dependabot/org.jetbrains.kotlin-kotlin-gradle-plugin-1.7.21mParticle/mparticle-android-sample-apps:dependabot/gradle/core-sdk-samples/higgs-shop-sample-app/chore/dependabot/org.jetbrains.kotlin-kotlin-gradle-plugin-1.7.21Copy head branch name to clipboard