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

[playground-manager[bot]]

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`](https://togithub.com/googleapis/java-cloud-bom/blob/HEAD/CHANGELOG.md#26420-2024-06-17) ##### Dependencies - update dependency com.google.cloud:google-cloud-spanner-jdbc to v2.19.3 ([#​6645](https://togithub.com/googleapis/java-cloud-bom/issues/6645)) ([baf9c12](https://togithub.com/googleapis/java-cloud-bom/commit/baf9c12ff6c94bd1e300ae1b636cdc63e7281695))

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Configuration

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This PR has been generated by Renovate Bot.

[github-actions[bot]]

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[bot]]

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