chore(deps): update dependency com.google.cloud:google-cloud-functions to v2.2.1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.cloud:google-cloud-functions	2.2.0 -> 2.2.1

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Release Notes

googleapis/java-functions

v2.2.1

Compare Source

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