chore(main): release 2.56.0 (#3715)

🤖 I have created a release *beep* *boop*
---


<details><summary>2.56.0</summary>

##
[2.56.0](v2.55.1...v2.56.0)
(2025-04-18)


### Features

* Selective gapic generation phase II
([#3730](#3730))
([64ac2c1](64ac2c1))


### Bug Fixes

* **hermetic-build:** use correct image name in templated graalvm jobs
([#3743](#3743))
([29a78d3](29a78d3))
* plumb mtls endpoint to TransportChannelProvider
([#3673](#3673))
([a961459](a961459))


### Dependencies

* add opentelemetry gcp-resources to shared deps
([#3722](#3722))
([b1b075d](b1b075d))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Author: release-please[bot]

.cloudbuild/graalvm/cloudbuild-test-a.yaml

@@ -14,7 +14,7 @@
 
 timeout: 7200s # 2 hours
 substitutions:
-  _SHARED_DEPENDENCIES_VERSION: '3.45.2-SNAPSHOT' # {x-version-update:google-cloud-shared-dependencies:current}
+  _SHARED_DEPENDENCIES_VERSION: '3.46.0' # {x-version-update:google-cloud-shared-dependencies:current}
   _JAVA_SHARED_CONFIG_VERSION: '1.15.4'
 options:
   machineType: 'E2_HIGHCPU_8'

.cloudbuild/graalvm/cloudbuild-test-b.yaml

@@ -14,7 +14,7 @@
 
 timeout: 7200s # 2 hours
 substitutions:
-  _SHARED_DEPENDENCIES_VERSION: '3.45.2-SNAPSHOT' # {x-version-update:google-cloud-shared-dependencies:current}
+  _SHARED_DEPENDENCIES_VERSION: '3.46.0' # {x-version-update:google-cloud-shared-dependencies:current}
   _JAVA_SHARED_CONFIG_VERSION: '1.15.4'
 options:
   machineType: 'E2_HIGHCPU_8'

.cloudbuild/graalvm/cloudbuild-test-c.yaml

@@ -14,7 +14,7 @@
 
 timeout: 7200s # 2 hours
 substitutions:
-  _SHARED_DEPENDENCIES_VERSION: '3.45.2-SNAPSHOT' # {x-version-update:google-cloud-shared-dependencies:current}
+  _SHARED_DEPENDENCIES_VERSION: '3.46.0' # {x-version-update:google-cloud-shared-dependencies:current}
   _JAVA_SHARED_CONFIG_VERSION: '1.15.4'
 options:
   machineType: 'E2_HIGHCPU_8'

.cloudbuild/graalvm/cloudbuild.yaml

@@ -14,7 +14,7 @@
 
 timeout: 7200s # 2 hours
 substitutions:
-  _SHARED_DEPENDENCIES_VERSION: '3.45.2-SNAPSHOT' # {x-version-update:google-cloud-shared-dependencies:current}
+  _SHARED_DEPENDENCIES_VERSION: '3.46.0' # {x-version-update:google-cloud-shared-dependencies:current}
   _JAVA_SHARED_CONFIG_VERSION: '1.15.4'
 steps:
   # GraalVM A build

.cloudbuild/library_generation/cloudbuild-library-generation-push.yaml

@@ -14,7 +14,7 @@
 
 timeout: 7200s # 2 hours
 substitutions:
-  _GAPIC_GENERATOR_JAVA_VERSION: '2.55.2-SNAPSHOT' # {x-version-update:gapic-generator-java:current}
+  _GAPIC_GENERATOR_JAVA_VERSION: '2.56.0' # {x-version-update:gapic-generator-java:current}
   _PRIVATE_IMAGE_NAME: "us-docker.pkg.dev/java-hermetic-build-prod/private-resources/java-library-generation"
   _PRIVATE_SHA_IMAGE_ID: "${_PRIVATE_IMAGE_NAME}:${COMMIT_SHA}"
   _PRIVATE_LATEST_IMAGE_ID: "${_PRIVATE_IMAGE_NAME}:latest"

.cloudbuild/library_generation/library_generation.Dockerfile

@@ -21,7 +21,7 @@ FROM docker.io/library/maven:3.9.9-eclipse-temurin-17-alpine@sha256:969014ee8852
 WORKDIR /sdk-platform-java
 COPY . .
 # {x-version-update-start:gapic-generator-java:current}
-ENV DOCKER_GAPIC_GENERATOR_VERSION="2.55.2-SNAPSHOT"
+ENV DOCKER_GAPIC_GENERATOR_VERSION="2.56.0"
 # {x-version-update-end}
 
 # Download the java formatter

.cloudbuild/library_generation/library_generation_airlock.Dockerfile

@@ -21,7 +21,7 @@ FROM us-docker.pkg.dev/artifact-foundry-prod/docker-3p-trusted/maven@sha256:d3f0
 WORKDIR /sdk-platform-java
 COPY . .
 # {x-version-update-start:gapic-generator-java:current}
-ENV DOCKER_GAPIC_GENERATOR_VERSION="2.55.2-SNAPSHOT"
+ENV DOCKER_GAPIC_GENERATOR_VERSION="2.56.0"
 # {x-version-update-end}
 
 # Download the java formatter

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "2.55.1"
+  ".": "2.56.0"
 }

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [2.56.0](https://github.com/googleapis/sdk-platform-java/compare/v2.55.1...v2.56.0) (2025-04-18)
+
+
+### Features
+
+* Selective gapic generation phase II ([#3730](https://github.com/googleapis/sdk-platform-java/issues/3730)) ([64ac2c1](https://github.com/googleapis/sdk-platform-java/commit/64ac2c1df1c3ddd46caaa82dd3553365691b66c6))
+
+
+### Bug Fixes
+
+* **hermetic-build:** use correct image name in templated graalvm jobs ([#3743](https://github.com/googleapis/sdk-platform-java/issues/3743)) ([29a78d3](https://github.com/googleapis/sdk-platform-java/commit/29a78d3b7b6ac8533790f6a3763cc7f8144826ee))
+* plumb mtls endpoint to TransportChannelProvider ([#3673](https://github.com/googleapis/sdk-platform-java/issues/3673)) ([a961459](https://github.com/googleapis/sdk-platform-java/commit/a9614593701d945a58b9e333b99589871f82ef33))
+
+
+### Dependencies
+
+* add opentelemetry gcp-resources to shared deps ([#3722](https://github.com/googleapis/sdk-platform-java/issues/3722)) ([b1b075d](https://github.com/googleapis/sdk-platform-java/commit/b1b075d0530c7b10dc92cdd9cad0801147b95fc7))
+
 ## [2.55.1](https://github.com/googleapis/sdk-platform-java/compare/v2.55.0...v2.55.1) (2025-03-12)
 
 

WORKSPACE

@@ -58,7 +58,7 @@ load("@rules_jvm_external//:defs.bzl", "maven_install")
 load("@io_grpc_grpc_java//:repositories.bzl", "IO_GRPC_GRPC_JAVA_ARTIFACTS")
 load("@io_grpc_grpc_java//:repositories.bzl", "IO_GRPC_GRPC_JAVA_OVERRIDE_TARGETS")
 
-_gapic_generator_java_version = "2.55.2-SNAPSHOT"  # {x-version-update:gapic-generator-java:current}
+_gapic_generator_java_version = "2.56.0"  # {x-version-update:gapic-generator-java:current}
 
 maven_install(
     artifacts = [