Bump volume-modifier-for-k8s to v0.2.1

[AndrewSirenko]

Is this a bug fix or adding new feature?
Dependencies

What is this PR about? / Why do we need it?
Bump vol-modifier-for-k8s to fix its otel-grpc CVE-2023-47108

What testing is done?
CI

[github-actions]

Code Coverage Diff

This PR does not change the code coverage

[AndrewSirenko]

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[AndrewSirenko]

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[AndrewSirenko]

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