chore(deps): update dependency com.google.cloud:libraries-bom to v26.78.0 (#4377)

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Adoption](https://docs.renovatebot.com/merge-confidence/) | [Passing](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [com.google.cloud:libraries-bom](https://cloud.google.com/java/docs/bom) ([source](https://redirect.github.com/googleapis/java-cloud-bom)) | `26.76.0` → `26.78.0` | ![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:libraries-bom/26.78.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:libraries-bom/26.78.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:libraries-bom/26.76.0/26.78.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:libraries-bom/26.76.0/26.78.0?slim=true) |

---

### Release Notes

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

### [`v26.78.0`](https://redirect.github.com/googleapis/java-cloud-bom/blob/HEAD/CHANGELOG.md#26780-2026-03-13)

[Compare Source](https://redirect.github.com/googleapis/java-cloud-bom/compare/v26.77.0...v26.78.0)

##### Dependencies

- update dependency com.google.cloud:gapic-libraries-bom to v1.81.0 ([#&#8203;7417](https://redirect.github.com/googleapis/java-cloud-bom/issues/7417)) ([c197e8e](https://redirect.github.com/googleapis/java-cloud-bom/commit/c197e8e629d18f6723504a556024115b184b8642))

### [`v26.77.0`](https://redirect.github.com/googleapis/java-cloud-bom/blob/HEAD/CHANGELOG.md#26770-2026-03-04)

[Compare Source](https://redirect.github.com/googleapis/java-cloud-bom/compare/v26.76.0...v26.77.0)

##### Features

- remove boms for libraries migrated to the gapic-libraries-bom ([#&#8203;7389](https://redirect.github.com/googleapis/java-cloud-bom/issues/7389)) ([2abc52a](https://redirect.github.com/googleapis/java-cloud-bom/commit/2abc52a834a6fb2cd67341d1111e32c070acd8be))
- remove google-cloud-datastore-bom ([2abc52a](https://redirect.github.com/googleapis/java-cloud-bom/commit/2abc52a834a6fb2cd67341d1111e32c070acd8be))
- remove google-cloud-logging-logback-bom ([2abc52a](https://redirect.github.com/googleapis/java-cloud-bom/commit/2abc52a834a6fb2cd67341d1111e32c070acd8be))

##### Dependencies

- update dependency com.google.cloud:first-party-dependencies to v3.57.0 ([#&#8203;7400](https://redirect.github.com/googleapis/java-cloud-bom/issues/7400)) ([564a35d](https://redirect.github.com/googleapis/java-cloud-bom/commit/564a35d7afa1a1022a8f949a4c145ffe95ff8d0b))
- update dependency com.google.cloud:gapic-libraries-bom to v1.80.1 ([#&#8203;7401](https://redirect.github.com/googleapis/java-cloud-bom/issues/7401)) ([a8bf57d](https://redirect.github.com/googleapis/java-cloud-bom/commit/a8bf57d273c3dad6bc238c5a27e4ca9e4f6cc80a))
- update dependency com.google.cloud:google-cloud-bigquery to v2.60.0 ([#&#8203;7409](https://redirect.github.com/googleapis/java-cloud-bom/issues/7409)) ([26b3ac3](https://redirect.github.com/googleapis/java-cloud-bom/commit/26b3ac3a530fdccb8fef1724af341276f88583a3))
- update dependency com.google.cloud:google-cloud-bigtable-bom to v2.74.0 ([#&#8203;7399](https://redirect.github.com/googleapis/java-cloud-bom/issues/7399)) ([99c1438](https://redirect.github.com/googleapis/java-cloud-bom/commit/99c14389d4b5ced6eec9468ced8e428b44d3f5e1))
- update dependency com.google.cloud:google-cloud-firestore-bom to v3.38.0 ([#&#8203;7407](https://redirect.github.com/googleapis/java-cloud-bom/issues/7407)) ([c1381e8](https://redirect.github.com/googleapis/java-cloud-bom/commit/c1381e801ac973dae57b45b5478b4b3a133d71e7))
- update dependency com.google.cloud:google-cloud-nio to v0.128.13 ([#&#8203;7414](https://redirect.github.com/googleapis/java-cloud-bom/issues/7414)) ([fe0d8bd](https://redirect.github.com/googleapis/java-cloud-bom/commit/fe0d8bd1e8a92a0ba2790bfc017d8fc4aaf812d3))
- update dependency com.google.cloud:google-cloud-pubsub-bom to v1.149.0 ([#&#8203;7405](https://redirect.github.com/googleapis/java-cloud-bom/issues/7405)) ([044624f](https://redirect.github.com/googleapis/java-cloud-bom/commit/044624f29d07d6a7dd38eb23128c5c31c437704e))
- update dependency com.google.cloud:google-cloud-pubsublite-bom to v1.16.2 ([#&#8203;7408](https://redirect.github.com/googleapis/java-cloud-bom/issues/7408)) ([4efd210](https://redirect.github.com/googleapis/java-cloud-bom/commit/4efd2105e30c48abb0cb27f8388cdbee41c9cf81))
- update dependency com.google.cloud:google-cloud-spanner-bom to v6.111.1 ([#&#8203;7411](https://redirect.github.com/googleapis/java-cloud-bom/issues/7411)) ([dca9f98](https://redirect.github.com/googleapis/java-cloud-bom/commit/dca9f980f1a4e07aa249701bafc430e9730c3dc5))
- update dependency com.google.cloud:google-cloud-spanner-jdbc to v2.35.4 ([#&#8203;7412](https://redirect.github.com/googleapis/java-cloud-bom/issues/7412)) ([932bcb1](https://redirect.github.com/googleapis/java-cloud-bom/commit/932bcb1fd9996aab6edab63e8e58b57b75a6ebb2))
- update dependency com.google.cloud:google-cloud-storage-bom to v2.64.0 ([#&#8203;7406](https://redirect.github.com/googleapis/java-cloud-bom/issues/7406)) ([80a8c22](https://redirect.github.com/googleapis/java-cloud-bom/commit/80a8c2217282d995e6bf56dbb7f9b21d4e946469))

</details>

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Author: renovate-bot

samples/snippets/pom.xml

@@ -34,7 +34,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>libraries-bom</artifactId>
-        <version>26.76.0</version>
+        <version>26.78.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>