fix(deps): update dependency com.google.cloud:libraries-bom to v26.42.0

[playground-manager]

This PR contains the following updates:

Package	Type	Update	Change
com.google.cloud:libraries-bom (source)	dependencies	minor	26.41.0 -> 26.42.0

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Release Notes

googleapis/java-cloud-bom (com.google.cloud:libraries-bom)

v26.42.0

Dependencies

• update dependency com.google.cloud:google-cloud-spanner-jdbc to v2.19.3 (#​6645) (baf9c12)

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Configuration

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This PR has been generated by Renovate Bot.

[github-actions]

No changes. Your infrastructure matches the configuration.

Terraform has compared your real infrastructure against your configuration
and found no differences, so no changes are needed.

[github-actions]

Build scan published to https://gradle.com/s/jm3ghrlxs6iwq