chore(deps): update dependency com.google.cloud:google-cloud-spanner to v6.81.1 (#3467)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-spanner](https://redirect.github.com/googleapis/java-spanner) | `6.81.0` -> `6.81.1` | [![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-spanner/6.81.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-spanner/6.81.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-spanner/6.81.0/6.81.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-spanner/6.81.0/6.81.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v6.81.1`](https://redirect.github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6811-2024-11-11)

[Compare Source](https://redirect.github.com/googleapis/java-spanner/compare/v6.81.0...v6.81.1)

##### Bug Fixes

-   Client built in metrics. Skip export if instance id is null ([#&#8203;3447](https://redirect.github.com/googleapis/java-spanner/issues/3447)) ([8b2e5ef](https://redirect.github.com/googleapis/java-spanner/commit/8b2e5ef5bb391e5a4d4df3cb45d6a3f722a8cfbe))
-   **spanner:** Avoid blocking thread in AsyncResultSet ([#&#8203;3446](https://redirect.github.com/googleapis/java-spanner/issues/3446)) ([7c82f1c](https://redirect.github.com/googleapis/java-spanner/commit/7c82f1c7823d4d529a70c0da231d2593f00b638b))

##### Dependencies

-   Update dependency com.google.api.grpc:proto-google-cloud-monitoring-v3 to v3.54.0 ([#&#8203;3437](https://redirect.github.com/googleapis/java-spanner/issues/3437)) ([7e28326](https://redirect.github.com/googleapis/java-spanner/commit/7e283261961d6435488ed668133dc3bdd238d402))
-   Update dependency com.google.cloud:google-cloud-monitoring to v3.54.0 ([#&#8203;3438](https://redirect.github.com/googleapis/java-spanner/issues/3438)) ([fa18894](https://redirect.github.com/googleapis/java-spanner/commit/fa188942c506c85f4c628a8b442b0ee2e6cb845f))
-   Update dependency com.google.cloud:google-cloud-trace to v2.53.0 ([#&#8203;3440](https://redirect.github.com/googleapis/java-spanner/issues/3440)) ([314eeb8](https://redirect.github.com/googleapis/java-spanner/commit/314eeb823e14c386ea6e65caae8c80e908e05600))
-   Update dependency io.opentelemetry:opentelemetry-bom to v1.44.1 ([#&#8203;3452](https://redirect.github.com/googleapis/java-spanner/issues/3452)) ([6518eea](https://redirect.github.com/googleapis/java-spanner/commit/6518eea2921006f1aa431e02754118e3d3d3b620))
-   Update opentelemetry.version to v1.44.1 ([#&#8203;3451](https://redirect.github.com/googleapis/java-spanner/issues/3451)) ([d9b0271](https://redirect.github.com/googleapis/java-spanner/commit/d9b0271603dd14c51954532054b134419150625a))

##### Documentation

-   Update samples' README.md to ensure given ([#&#8203;3420](https://redirect.github.com/googleapis/java-spanner/issues/3420)) ([663a974](https://redirect.github.com/googleapis/java-spanner/commit/663a974dc2a52d773deb620b0bc65f0049f63693))

</details>

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Author: renovate-bot

benchmarks/pom.xml

@@ -92,7 +92,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.81.0</version>
+      <version>6.81.1</version>
     </dependency>
     <dependency>
       <groupId>commons-cli</groupId>

samples/install-without-bom/pom.xml

@@ -33,7 +33,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.81.0</version>
+      <version>6.81.1</version>
     </dependency>
     <!-- [END spanner_install_without_bom] -->