Update Google BOM to 26.79.0

[kennknowles]

Used bomupgrader.py to update BOM and checked with beam-linkage-check.sh origin/master update-google-bom ""

> Task :checkJavaLinkage
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Mar 31, 2026 7:18:55 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: com.fasterxml.jackson.core:jackson-annotations:2.15.4 has 1 (out of 73) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:18:56 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: com.github.luben:zstd-jni:1.5.6-3 has 1 (out of 36) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:18:58 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: org.codehaus.woodstox:stax2-api:4.2.1 has 1 (out of 125) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:01 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: org.projectlombok:lombok:1.18.34 has 1 (out of 178) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:02 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: jaxen:jaxen:1.1.6 has 1 (out of 214) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:02 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: javax.xml.stream:stax-api:1.0-2 has 35 (out of 37) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:02 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: org.glassfish:javax.transaction:3.1 has 3 (out of 18) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:02 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: jakarta.xml.bind:jakarta.xml.bind-api:2.3.2 has 1 (out of 111) incompatible class files (class file major version is outside 45 <= v <= 52).
Mar 31, 2026 7:19:02 PM com.google.cloud.tools.opensource.classpath.ClassDumper findSymbolReferences
WARNING: javax.ws.rs:javax.ws.rs-api:2.1.1 has 1 (out of 138) incompatible class files (class file major version is outside 45 <= v <= 52).
NOTE: This task published artifacts into your local Maven repository. You may want to remove them manually.
[Incubating] Problems report is available at: file:///usr/local/google/home/klk/GitHub/apache/beam-release/build/reports/problems/problems-report.html
Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.
You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.
For more on this, please refer to https://docs.gradle.org/8.14.3/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.
BUILD SUCCESSFUL in 2m 41s
1933 actionable tasks: 319 executed, 1614 up-to-date
+ RESULT=0
+ set -e
+ set +x
Tue Mar 31 07:19:22 PM UTC 2026: Done: 0
No new linkage errors

---

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Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates several Google Cloud Platform library dependencies to ensure compatibility and leverage the latest features and fixes. The changes were verified using the project's standard linkage check tools to ensure no new dependency conflicts were introduced.

Highlights

• Dependency Update: Updated the Google Cloud Platform libraries BOM to version 26.79.0.
• Library Version Bumps: Updated gax_version to 2.76.0, grpc_version to 1.76.3, and google_api_services_storage to v1-rev20260204-2.0.0.
• Datastore Client Update: Updated google_cloud_datastore_v1_proto_client to version 2.37.0.

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