* feat: Add getStringOrDefault method to FieldValue

* feat: Add getStringOrDefault method to FieldValue

* Add null case to FieldValueTest unit test

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… to v2.39.0 (#3276)

… to v2.39.1 (#3278)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-bigquery](https://togithub.com/googleapis/java-bigquery) | `2.39.0` -> `2.39.1` | [![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-bigquery/2.39.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-bigquery/2.39.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-bigquery/2.39.0/2.39.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-bigquery/2.39.0/2.39.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-bigquery (com.google.cloud:google-cloud-bigquery)</summary>

### [`v2.39.1`](https://togithub.com/googleapis/java-bigquery/blob/HEAD/CHANGELOG.md#2391-2024-04-29)

##### Bug Fixes

-   [@&#8203;Nullable](https://togithub.com/Nullable) annotations on builder methods ([#&#8203;3222](https://togithub.com/googleapis/java-bigquery/issues/3222)) ([0c5eed1](https://togithub.com/googleapis/java-bigquery/commit/0c5eed1a18409f120a1243bd5da1db2aa4f9c206))

##### Dependencies

-   Update actions/checkout action ([#&#8203;3267](https://togithub.com/googleapis/java-bigquery/issues/3267)) ([c297ed2](https://togithub.com/googleapis/java-bigquery/commit/c297ed2c77e36257451b5c12e4988f3293cdbb88))
-   Update actions/upload-artifact action to v4.3.3 ([#&#8203;3258](https://togithub.com/googleapis/java-bigquery/issues/3258)) ([5215235](https://togithub.com/googleapis/java-bigquery/commit/52152350a2a6218b51ebf3d7dd6beb2699064a3c))
-   Update dependency com.google.api.grpc:proto-google-cloud-bigqueryconnection-v1 to v2.44.0 ([#&#8203;3270](https://togithub.com/googleapis/java-bigquery/issues/3270)) ([ee09ab6](https://togithub.com/googleapis/java-bigquery/commit/ee09ab68ea2be824aaf4e3d08b67e3bfbab2977f))
-   Update dependency com.google.cloud:google-cloud-bigquerystorage-bom to v3.5.0 ([e7c6201](https://togithub.com/googleapis/java-bigquery/commit/e7c620119321b673c19b99adb79247cd3c52cd67))
-   Update dependency com.google.cloud:google-cloud-datacatalog-bom to v1.48.0 ([#&#8203;3271](https://togithub.com/googleapis/java-bigquery/issues/3271)) ([3b6e0d5](https://togithub.com/googleapis/java-bigquery/commit/3b6e0d5e3d26b8e2de412aa926a638d72562d4a0))
-   Update github/codeql-action action to v2.25.2 ([#&#8203;3260](https://togithub.com/googleapis/java-bigquery/issues/3260)) ([3302dc4](https://togithub.com/googleapis/java-bigquery/commit/3302dc46e3e2c6a173798ef7f1642d3d4cb20332))
-   Update github/codeql-action action to v2.25.3 ([#&#8203;3268](https://togithub.com/googleapis/java-bigquery/issues/3268)) ([1cf2377](https://togithub.com/googleapis/java-bigquery/commit/1cf237702e16952029741c306aa57cb3558a663f))

</details>

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…v3.30.0 (#3279)

* deps: update dependency com.google.cloud:sdk-platform-java-config to v3.30.0

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