chore(deps): update dependency com.google.cloud:google-cloud-spanner-jdbc to v2.9.14 (#1222)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-spanner-jdbc](https://togithub.com/googleapis/java-spanner-jdbc) | `2.9.13` -> `2.9.14` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.9.14/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.9.14/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.9.14/compatibility-slim/2.9.13)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-spanner-jdbc/2.9.14/confidence-slim/2.9.13)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-spanner-jdbc</summary>

### [`v2.9.14`](https://togithub.com/googleapis/java-spanner-jdbc/blob/HEAD/CHANGELOG.md#&#8203;2914-httpsgithubcomgoogleapisjava-spanner-jdbccomparev2913v2914-2023-05-02)

[Compare Source](https://togithub.com/googleapis/java-spanner-jdbc/compare/v2.9.13...v2.9.14)

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-spanner-bom to v6.41.0 ([#&#8203;1216](https://togithub.com/googleapis/java-spanner-jdbc/issues/1216)) ([9d0be37](https://togithub.com/googleapis/java-spanner-jdbc/commit/9d0be37fcea0ab90f8408b433295f7640f059f0a))

</details>

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner-jdbc</artifactId>
-      <version>2.9.13</version>
+      <version>2.9.14</version>
     </dependency>
     <!-- [END spanner-jdbc_install_without_bom] -->