chore(deps): update dependency com.google.cloud:google-cloud-spanner to v6.102.1 (#4185)

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) | `6.102.0` -> `6.102.1` | [![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-spanner/6.102.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-spanner/6.102.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-spanner/6.102.0/6.102.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-spanner/6.102.0/6.102.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

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

### [`v6.102.1`](https://redirect.github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#61021-2025-10-23)

[Compare Source](https://redirect.github.com/googleapis/java-spanner/compare/v6.102.0...v6.102.1)

##### Bug Fixes

- **deps:** Update the Java code generator (gapic-generator-java) to 2.63.0 ([c1a8238](https://redirect.github.com/googleapis/java-spanner/commit/c1a8238af33a083411f63cf6276eb683ee67ac6a))
- Do a quick check if the application runs on GCP ([#&#8203;4163](https://redirect.github.com/googleapis/java-spanner/issues/4163)) ([b9d7daf](https://redirect.github.com/googleapis/java-spanner/commit/b9d7daf000c0fb8b67142c6161bb578cadf49b18))
- Migrate away from GoogleCredentials.fromStream() usages ([#&#8203;4151](https://redirect.github.com/googleapis/java-spanner/issues/4151)) ([94d0474](https://redirect.github.com/googleapis/java-spanner/commit/94d0474ace62ea1059e5b69243f0b6eef31ddd06))

##### Dependencies

- Update actions/checkout action to v5 ([#&#8203;4158](https://redirect.github.com/googleapis/java-spanner/issues/4158)) ([b32ebcf](https://redirect.github.com/googleapis/java-spanner/commit/b32ebcf96bbf696b1eb84204622463fac59be017))
- Update actions/checkout action to v5 ([#&#8203;4161](https://redirect.github.com/googleapis/java-spanner/issues/4161)) ([02a17c6](https://redirect.github.com/googleapis/java-spanner/commit/02a17c6e6253e026cb3c6360eb925a322143b518))
- Update dependency com.google.cloud:sdk-platform-java-config to v3.53.0 ([#&#8203;4178](https://redirect.github.com/googleapis/java-spanner/issues/4178)) ([24fe194](https://redirect.github.com/googleapis/java-spanner/commit/24fe194fa3595b2ab817b9fc4cd57840250fef1f))
- Update dependency net.bytebuddy:byte-buddy to v1.17.8 ([#&#8203;4154](https://redirect.github.com/googleapis/java-spanner/issues/4154)) ([c911381](https://redirect.github.com/googleapis/java-spanner/commit/c911381c2ca9cd46fbeb831c659aaf55f21437f2))
- Update dependency net.bytebuddy:byte-buddy-agent to v1.17.8 ([#&#8203;4155](https://redirect.github.com/googleapis/java-spanner/issues/4155)) ([3075df7](https://redirect.github.com/googleapis/java-spanner/commit/3075df714b1787512174b3f18cbc802359d442dc))
- Update googleapis/sdk-platform-java action to v2.63.0 ([#&#8203;4179](https://redirect.github.com/googleapis/java-spanner/issues/4179)) ([5f48191](https://redirect.github.com/googleapis/java-spanner/commit/5f481913d60372fccf399c5c0e168b7d0c553ba0))

##### Documentation

- Add warning for encoded credential ([#&#8203;4182](https://redirect.github.com/googleapis/java-spanner/issues/4182)) ([92620f9](https://redirect.github.com/googleapis/java-spanner/commit/92620f969908a8ba7fcf92d0b350a8c4d05398f8))

</details>

---

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Author: renovate-bot

benchmarks/pom.xml

@@ -90,7 +90,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.102.0</version>
+      <version>6.102.1</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>6.102.0</version>
+      <version>6.102.1</version>
     </dependency>
     <!-- [END spanner_install_without_bom] -->