chore(kotlin): Setup e2e tests for Kotlin

[mattcreaser]

Problem

Kotlin native bindings did not have e2e tests running on CI.

Issue #, if available:

Changes

• Add e2e tests in a separate gradle project
• Setup workflow to run e2e tests
• Update the native-bindings test app to tag deployed sandboxes for automatic cleanup (in case workflow fails to cleanup)
• Only run each platform's e2e tests when their specific codebases change

Validation

• e2e tests pass locally
• e2e tests pass on CI

Checklist

• PR description included
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[changeset-bot]

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Latest commit: 962e191

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