Upgrade controller-gen to 0.15.0

[youngbupark]

Description

To upgrade golang 1.22.x, we first need to use the latest controller-gen due to the indirect package which is incompatible with 1.22.x.

golang 1.22 has test coverage drop issue. I extracted controller-gen update part from #7533

Type of change

• This pull request is a minor refactor, code cleanup, test improvement, or other maintenance task and doesn't change the functionality of Radius (issue link optional).

Fixes: #issue_number

[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Name	Value
Repository	youngbupark/radius
Commit ref	f051159
Unique ID	funcf4e597e470
Image tag	pr-funcf4e597e470

Click here to see the list of tools in the current test run

• gotestsum 1.10.0
• KinD: v0.20.0
• Dapr: 1.12.0
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.1.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-funcf4e597e470
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-funcf4e597e470
• controller test image location: ghcr.io/radius-project/dev/controller:pr-funcf4e597e470
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-funcf4e597e470
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
✅ Recipe publishing succeeded
⌛ Starting samples functional tests...
⌛ Starting msgrp functional tests...
⌛ Starting daprrp functional tests...
⌛ Starting datastoresrp functional tests...
⌛ Starting shared functional tests...
⌛ Starting kubernetes functional tests...
⌛ Starting cli functional tests...
✅ msgrp functional tests succeeded
✅ samples functional tests succeeded
✅ kubernetes functional tests succeeded
✅ ucp functional tests succeeded
✅ daprrp functional tests succeeded
✅ datastoresrp functional tests succeeded
✅ cli functional tests succeeded
✅ shared functional tests succeeded

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.59%. Comparing base (e59b3ac) to head (f051159).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7556   +/-   ##
=======================================
  Coverage   63.58%   63.59%           
=======================================
  Files         414      414           
  Lines       23309    23309           
=======================================
+ Hits        14821    14823    +2     
+ Misses       7225     7224    -1     
+ Partials     1263     1262    -1     

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