chore(deps): update dependency com.google.cloud:google-cloud-spanner to v6.112.0 (#4346)

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:google-cloud-spanner](https://redirect.github.com/googleapis/java-spanner) | `6.110.0` → `6.112.0` | ![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-spanner/6.112.0?slim=true) | ![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-spanner/6.112.0?slim=true) | ![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-spanner/6.110.0/6.112.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-spanner/6.110.0/6.112.0?slim=true) |

---

### Release Notes

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

### [`v6.112.0`](https://redirect.github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#61120-2026-03-17)

[Compare Source](https://redirect.github.com/googleapis/java-spanner/compare/v6.111.1...v6.112.0)

##### Features

- Ability to update credentials on long running client ([#&#8203;4371](https://redirect.github.com/googleapis/java-spanner/issues/4371)) ([e238990](https://redirect.github.com/googleapis/java-spanner/commit/e238990077badb063b1b05b0d71f58859434f7ee))
- Add SI, adapt, split point related proto ([7aa4d90](https://redirect.github.com/googleapis/java-spanner/commit/7aa4d90cd4f001713ee2b0b5113303a748b237e0))
- **spanner:** Include cache updates and routing hint into BeginTransaction and Commit request/response respectively ([7aa4d90](https://redirect.github.com/googleapis/java-spanner/commit/7aa4d90cd4f001713ee2b0b5113303a748b237e0))

##### Bug Fixes

- **deps:** Update the Java code generator (gapic-generator-java) to 2.67.0 ([7aa4d90](https://redirect.github.com/googleapis/java-spanner/commit/7aa4d90cd4f001713ee2b0b5113303a748b237e0))
- Fix unclosed literal error for consecutive backslashes ([#&#8203;4387](https://redirect.github.com/googleapis/java-spanner/issues/4387)) ([f4884a8](https://redirect.github.com/googleapis/java-spanner/commit/f4884a83d15dcff6e246c7db47c8bafc3369a0a3))

### [`v6.111.1`](https://redirect.github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#61111-2026-03-03)

[Compare Source](https://redirect.github.com/googleapis/java-spanner/compare/v6.111.0...v6.111.1)

##### Bug Fixes

- Retry CreateSession also when waitForMinSessions is zero ([#&#8203;4360](https://redirect.github.com/googleapis/java-spanner/issues/4360)) ([9263972](https://redirect.github.com/googleapis/java-spanner/commit/92639722793a994032761155013e506c9693b464))

##### Dependencies

- Update dependency com.google.cloud:sdk-platform-java-config to v3.57.0 ([#&#8203;4358](https://redirect.github.com/googleapis/java-spanner/issues/4358)) ([1ce4b8e](https://redirect.github.com/googleapis/java-spanner/commit/1ce4b8e24bac44c89f742f0afb395ae4c711abfd))
- Update googleapis/sdk-platform-java action to v2.67.0 ([#&#8203;4359](https://redirect.github.com/googleapis/java-spanner/issues/4359)) ([23781d9](https://redirect.github.com/googleapis/java-spanner/commit/23781d9f05db66d033d4d9125707a9988e1697db))

### [`v6.111.0`](https://redirect.github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#61110-2026-02-13)

[Compare Source](https://redirect.github.com/googleapis/java-spanner/compare/v6.110.0...v6.111.0)

##### Features

- Add E2E fallback to the spanner client. ([#&#8203;4282](https://redirect.github.com/googleapis/java-spanner/issues/4282)) ([d36bd21](https://redirect.github.com/googleapis/java-spanner/commit/d36bd21a09cdd2006e53a43b6984d2a68ea24d3e))

##### Bug Fixes

- Rollback transactions that are waiting for tx-id to be returned ([#&#8203;4342](https://redirect.github.com/googleapis/java-spanner/issues/4342)) ([866a8c2](https://redirect.github.com/googleapis/java-spanner/commit/866a8c2d23f0d5edee1d98ead7d002b1981d5339))

</details>

---

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Author: renovate-bot

benchmarks/pom.xml

@@ -91,7 +91,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.110.0</version>
+      <version>6.112.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.auto.value</groupId>

samples/install-without-bom/pom.xml

@@ -33,7 +33,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.110.0</version>
+      <version>6.112.0</version>
     </dependency>
     <!-- [END spanner_install_without_bom] -->