chore(deps): runtime go runtime go1.25.9 → go1.26.2

[gh-worker-campaigns-3e9aa4]

Summary: Runtime update — 1 package upgraded (MAJOR changes included)

Manifests changed:

• . (go)

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✅ Action Required: Please review the changes below. If they look good, approve and merge this PR.

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Runtime Upgrade

This update includes a go runtime upgrade.

What changed in go.mod

The toolchain directive specifies which Go version to use when building this module. Adding it is best practice — it keeps local development in sync with CI and makes the intended Go version explicit. Build systems that manage their own Go installation may ignore this directive.

The toolchain directive controls only the Go binary used for compilation. Language features remain governed by the go directive in go.mod, which the owning team should bump when ready to adopt a newer language version.

Updates

Package	From	To	Type	Dep Type
go runtime	go1.25.9	go1.26.2	runtime	Direct

Runtime Related Updates

These files were updated to match the new Go runtime version:

File	Status	Details
.gitlab-ci.yml	Updated	registry.ddbuild.io/images/mirror/library/golang:1.25.9 → registry.ddbuild.io/images/mirror/library/golang:1.26.2
Dockerfile	Updated	golang:1.25.9 → golang:1.26.2
check-operator.Dockerfile	Updated	golang:1.25.9 → golang:1.26.2

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Review Checklist

Standard review:

• Review changes for compatibility with your code
• Check for breaking changes in release notes
• Run tests locally or wait for CI
• Approve and merge this PR

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Update Mode: Runtime EOL Upgrade

🤖 Generated by DataDog Automated Dependency Management System

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.41%. Comparing base (4c40cf4) to head (3ff4b1f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2923   +/-   ##
=======================================
  Coverage   41.41%   41.41%           
=======================================
  Files         327      327           
  Lines       28891    28891           
=======================================
  Hits        11964    11964           
  Misses      16072    16072           
  Partials      855      855           

Flag	Coverage Δ
unittests	41.41% <ø> (ø)

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[datadog-prod-us1-4]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 41.56% (+0.00%)

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[gh-worker-campaigns-3e9aa4]

Auto-rebase complete

Branch is up to date with main — rebased onto 4c40cf4.

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[gh-worker-campaigns-3e9aa4]

Auto-rebase failed: unresolvable conflicts

The following files contain non-dependency changes that cannot be automatically resolved:

• .gitlab-ci.yml
• Dockerfile
• check-operator.Dockerfile
• go.work

Please rebase manually.

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