Update go version and CI config

[cjkreklow]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.85%. Comparing base (2dcbb5d) to head (e732c47).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
exit.go	36.36%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   93.91%   93.85%   -0.06%     
==========================================
  Files           3        3              
  Lines         115      114       -1     
==========================================
- Hits          108      107       -1     
  Misses          7        7              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Copilot]

Pull request overview

This PR updates the project’s Go/tooling baseline and CI configuration, while making small Go code adjustments to align with newer Go/linters.

Changes:

• Bump module Go version to go 1.24.
• Update GitHub Actions workflows (setup-go/checkout/codecov/golangci-lint action versions) and overhaul .golangci.yml to the v2 config style.
• Refactor internal counters to use atomic.Int64 and modernize variadic params from ...interface{} to ...any; add/adjust nolint directives in tests.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
go.mod	Bumps module Go version to 1.24.
.github/workflows/test.yml	Updates action versions and Codecov action usage.
.github/workflows/lint.yml	Updates action versions and pins golangci-lint version.
.golangci.yml	Replaces prior lint config with a v2-style config and formatter list.
write.go	Switches live line counter to atomic.Int64, updates variadic params to any, adjusts live-line clearing loop.
exit.go	Switches timeout field to atomic.Int64 and updates atomic access.
write_test.go	Adds nolint:lll for an intentionally long expected-output string; copyright year bump.
exit_test.go	Updates nolint directive to err113 and removes an inline nolint; copyright year bump.
cmd_test.go	Updates nolint directive to err113; copyright year bump.
cli.go	Copyright year bump only.
cmd.go	Copyright year bump only.
LICENSE.txt	Copyright year bump.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.