mgmt, handle the split of deployments in specs

[weidongxu-microsoft]

packages Azure/azure-sdk#8768
PR Azure/azure-rest-api-specs#34190

context:

1. "deployments.json" is moved out of package-resources-2025-04 tag
2. SDK now generate it separately (instead of make a new tag that contains both "resources.json" and "deployments.json"), so that when it moves to typespec, it would not have major impact on clients
3. This should not impact customer that uses the fluent interfaces. (and there is no change in our test code or sample code)
4. But it could affect customer that directly use the serviceClient(). And this is documented in changelog.
5. "deploymentStackClient()" is to be moved to a separate package (currently tagged as Deprecated). We haven't exposed fluent interface for it, hence we'd expect low customer impact.

main code change 32afea2

Description

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[github-actions]

API Change Check

APIView identified API level changes in this PR and created the following API reviews

com.azure.resourcemanager:azure-resourcemanager-resources

[Copilot]

Pull Request Overview

This PR splits the deployments API out of the main resource manager package and moves the related clients (DeploymentsClient and DeploymentOperationsClient) to a separate DeploymentsManagementClient. It updates both test and production code along with native-image configuration files to support the new client structure and deprecates the old deploymentStackClient.

• Moved deployments functionality from ResourceManagementClient to a new DeploymentsManagementClient.
• Updated native image and REST proxy configurations to reflect the new API split.
• Adjusted ResourceManager to expose the new deploymentClient and deprecate deploymentStackClient.

Reviewed Changes

Copilot reviewed 51 out of 51 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
DeploymentsTests.java	Minor test comment update for cancellations.
native-image files	Updated reflect/proxy configurations for deployments.
ResourceManagementClientImpl.java	Removed deployments and deploymentOperations fields in favor of new client.
DeploymentsManagementClientImpl.java / Builder	Added new deployments management client implementation and builder.
DeploymentsImpl.java, DeploymentsClientImpl.java, DeploymentOperationsClientImpl.java, DeploymentImpl.java	Adjusted service client calls to use the new deploymentClient.
ResourceManager.java	Exposed new deploymentClient and deprecated deploymentStackClient.
assets.json, CHANGELOG.md, api-specs.json	Updated tagging and API specs to align with changes.

Comments suppressed due to low confidence (2)

sdk/resourcemanager/azure-resourcemanager-resources/src/main/java/com/azure/resourcemanager/resources/implementation/DeploymentsClientImpl.java:85

• The service interface name 'DeploymentsManagemen' appears to be truncated. Consider renaming it to 'DeploymentsManagement' for clarity and consistency.

@ServiceInterface(name = "DeploymentsManagemen")

sdk/resourcemanager/azure-resourcemanager-resources/src/main/java/com/azure/resourcemanager/resources/implementation/DeploymentOperationsClientImpl.java:63

• The service interface name 'DeploymentsManagemen' seems incomplete. Renaming it to 'DeploymentsManagement' would improve readability and consistency with the rest of the code.

@ServiceInterface(name = "DeploymentsManagemen")