build(go): bump to 1.26.3

[DariuszPorowski]

Description

bump go to the latest one

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).

Contributor checklist

Please verify that the PR meets the following requirements, where applicable:

• An overview of proposed schema changes is included in a linked GitHub issue.
  • Yes
  • Not applicable
• A design document is added or updated under eng/design-notes/ in this repository, if new APIs are being introduced.
  • Yes
  • Not applicable
• The design document has been reviewed and approved by Radius maintainers/approvers.
  • Yes
  • Not applicable
• A PR for resource-types-contrib is created, if resource types or recipes are affected by the changes in this PR.
  • Yes
  • Not applicable
• A PR for dashboard is created, if the Radius Dashboard is affected by the changes in this PR.
  • Yes
  • Not applicable
• A PR for the documentation repository is created, if the changes in this PR affect the documentation or any user facing updates are made.
  • Yes
  • Not applicable

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[Copilot]

Pull request overview

Updates the repository’s Go toolchain target to Go 1.26.3 and tidies go.mod dependency declarations to keep requirements organized for the build and module graph.

Changes:

• Bump go directive from 1.26.1 to 1.26.3.
• Move github.com/hashicorp/go-version v1.9.0 into the main require (...) block (removing the standalone require).

[github-actions]

Unit Tests

    2 files  ±0    421 suites  ±0   7m 34s ⏱️ +15s
5 034 tests ±0  5 032 ✅ ±0  2 💤 ±0  0 ❌ ±0 
6 061 runs  ±0  6 059 ✅ ±0  2 💤 ±0  0 ❌ ±0 

Results for commit 8d2e564. ± Comparison against base commit 935b9c8.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.39%. Comparing base (935b9c8) to head (8d2e564).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11850   +/-   ##
=======================================
  Coverage   51.38%   51.39%           
=======================================
  Files         716      716           
  Lines       45106    45106           
=======================================
+ Hits        23178    23182    +4     
+ Misses      19725    19723    -2     
+ Partials     2203     2201    -2     

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[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Click here to see the test run details

Name	Value
Repository	radius-project/radius
Commit ref	8d2e564
Unique ID	func52f8143cbb
Image tag	pr-func52f8143cbb

• gotestsum 1.13.0
• KinD: v0.29.0
• Dapr: 1.14.4
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.3.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-func52f8143cbb
• 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-func52f8143cbb
• dynamic-rp test image location: ghcr.io/radius-project/dev/dynamic-rp:pr-func52f8143cbb
• controller test image location: ghcr.io/radius-project/dev/controller:pr-func52f8143cbb
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-func52f8143cbb
• 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 ucp-cloud functional tests...
⌛ Starting corerp-cloud functional tests...
✅ ucp-cloud functional tests succeeded
❌ corerp-cloud functional test failed. Please check the logs for more details
⌛ Starting corerp-cloud functional tests...
✅ corerp-cloud functional tests succeeded