chore(deps): update dependency com.google.api:gapic-generator-java to v2.68.0 (#12114)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[com.google.api:gapic-generator-java](https://redirect.github.com/googleapis/sdk-platform-java)
| `2.67.0` → `2.68.0` |
![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.api:gapic-generator-java/2.68.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.api:gapic-generator-java/2.67.0/2.68.0?slim=true)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/7649) for more information.

---

### Release Notes

<details>
<summary>googleapis/sdk-platform-java
(com.google.api:gapic-generator-java)</summary>

###
[`v2.68.0`](https://redirect.github.com/googleapis/sdk-platform-java/blob/HEAD/CHANGELOG.md#2680-2026-03-17)

[Compare
Source](https://redirect.github.com/googleapis/sdk-platform-java/compare/v2.67.0...v2.68.0)

##### Features

- Add client request duration metric.
([#&#8203;4132](https://redirect.github.com/googleapis/sdk-platform-java/issues/4132))
([6a76397](https://redirect.github.com/googleapis/sdk-platform-java/commit/6a763979c2c5427f0a7ba23708fb7948520662d8))
- Add more attributes to golden signals metrics.
([#&#8203;4135](https://redirect.github.com/googleapis/sdk-platform-java/issues/4135))
([59d0624](https://redirect.github.com/googleapis/sdk-platform-java/commit/59d0624ec5a85580a503f719897597161f529e3f))
- **gax-httpjson:** add HttpJsonErrorParser utility
([#&#8203;4137](https://redirect.github.com/googleapis/sdk-platform-java/issues/4137))
([a1b7565](https://redirect.github.com/googleapis/sdk-platform-java/commit/a1b7565ef752259d79d3f1288b85120c6ac7452b))
- **generator:** add extra allowed modules that will not be removed from
the monorepo if they are present
([#&#8203;4124](https://redirect.github.com/googleapis/sdk-platform-java/issues/4124))
([774fe6e](https://redirect.github.com/googleapis/sdk-platform-java/commit/774fe6ede6bf25e150fb405dfe3bac9d85e21169))
- **o11y:** introduce `gcp.client.repo` and `gcp.client.artifact`
attributes
([#&#8203;4120](https://redirect.github.com/googleapis/sdk-platform-java/issues/4120))
([105f644](https://redirect.github.com/googleapis/sdk-platform-java/commit/105f644209cb78845a423d949cb7633a86d07868))
- **o11y:** Introduce `rpc.system.name` and `rpc.method` in gRPC
([#&#8203;4121](https://redirect.github.com/googleapis/sdk-platform-java/issues/4121))
([7ab6d2e](https://redirect.github.com/googleapis/sdk-platform-java/commit/7ab6d2e5784f264558b7aca6f23e771361dbea3a))
- **o11y:** introduce server.port attribute
([#&#8203;4128](https://redirect.github.com/googleapis/sdk-platform-java/issues/4128))
([56aa343](https://redirect.github.com/googleapis/sdk-platform-java/commit/56aa3438393e1992bb8f688291fb12030ec9bc0e))

##### Bug Fixes

- add null checks for ApiTracerFactory in ClientContext
([#&#8203;4122](https://redirect.github.com/googleapis/sdk-platform-java/issues/4122))
([4b3dbe2](https://redirect.github.com/googleapis/sdk-platform-java/commit/4b3dbe29b32dd0fba6c7a5f4a08fafa2798eeca5))
- Decrease log level for directpath warnings outside GCE
([#&#8203;4139](https://redirect.github.com/googleapis/sdk-platform-java/issues/4139))
([c9651e7](https://redirect.github.com/googleapis/sdk-platform-java/commit/c9651e7fa1501726798c0e38365e4b7c0acabc55))
- **gax-grpc:** add pick\_first fallback to direct path service config
([#&#8203;4143](https://redirect.github.com/googleapis/sdk-platform-java/issues/4143))
([b150fe9](https://redirect.github.com/googleapis/sdk-platform-java/commit/b150fe9ccfd5a97319388be4079699722aa033dc))
- Populate method level attributes in metrics recording
([#&#8203;4149](https://redirect.github.com/googleapis/sdk-platform-java/issues/4149))
([7b7e6c9](https://redirect.github.com/googleapis/sdk-platform-java/commit/7b7e6c99251e1aecb1831084f5576aa9e8e48930))
- suppress warnings in generated projects for non-idiomatic durations
([#&#8203;4119](https://redirect.github.com/googleapis/sdk-platform-java/issues/4119))
([4206e6e](https://redirect.github.com/googleapis/sdk-platform-java/commit/4206e6ed7546d6b8330dcb8dc29179e59677ccd3))
- Use ServiceName + MethodName as the regex for Otel
([#&#8203;2543](https://redirect.github.com/googleapis/sdk-platform-java/issues/2543))
([b9ae73f](https://redirect.github.com/googleapis/sdk-platform-java/commit/b9ae73fba59ba32e9688d11c2b3db51fe0d68d8d))

##### Documentation

- **hermetic\_build:** fix config field name in readme
([#&#8203;4130](https://redirect.github.com/googleapis/sdk-platform-java/issues/4130))
([a0c8f67](https://redirect.github.com/googleapis/sdk-platform-java/commit/a0c8f67f5a425d9a365b8e451b18add2c5947a11))

</details>

---

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---

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Author: renovate-bot

.github/workflows/ci.yaml

@@ -127,7 +127,7 @@ jobs:
           gcr.io/cloud-devrel-public-resources/java-library-generation:"${library_generation_image_tag}" \
           /src/library_generation/cli/entry_point.py validate-generation-config
       env:
-        library_generation_image_tag: 2.67.0
+        library_generation_image_tag: 2.68.0
         workspace_name: /workspace
 
 # TODO: Uncomment the needed Github Actions

.github/workflows/generated_files_sync.yaml

@@ -17,7 +17,7 @@ on:
   pull_request:
 name: generation diff
 env:
-  library_generation_image_tag: 2.67.0
+  library_generation_image_tag: 2.68.0
 jobs:
   root-pom:
     # root pom.xml does not have diff from generated one