chore: upgrade to go 1.26

[creativeprojects]

chore: upgrade to Go 1.26

Upgrades the Go toolchain from 1.25.8 to 1.26.1 and updates the build toolchain accordingly.

Toolchain changes:

• Bumped go.mod to go 1.26.1
• Updated golangci-lint from v2.5.0 to v2.9.0 (binary renamed to golangci-lint-v2)
• Updated mockery from v3.5.5 to v3.7.0
• Pinned GoReleaser to ~> v2 instead of latest in CI workflows
• Fixed GOCMD to use command -v go and corrected the GOPATH check in the Makefile

Lint fixes (prompted by updated linter rules):

• Pre-allocated slices with known or estimated capacities across several files
• Fixed a loop index bug in task.go (convertDaysOfMonth) and added test coverage for it
• Fixed error comparison in duration_test.go to use .Error() string comparison

[Copilot]

Copilot reviewed 19 out of 19 changed files in this pull request and generated no comments.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.04%. Comparing base (dd15110) to head (1478419).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #610   +/-   ##
=======================================
  Coverage   81.04%   81.04%           
=======================================
  Files         137      137           
  Lines       11092    11092           
=======================================
  Hits         8989     8989           
  Misses       1677     1677           
  Partials      426      426           

Flag	Coverage Δ
unittests	81.04% <100.00%> (ø)

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[Copilot]

Pull request overview

Copilot reviewed 19 out of 19 changed files in this pull request and generated 3 comments.

Comments suppressed due to low confidence (1)

schedule/handler_darwin.go:180

• This preallocates jobs with a hard-coded capacity of 10. Since the final size depends on systemJobs and userJobs, either avoid the magic number (let append grow), or compute capacity after fetching both slices (len(systemJobs)+len(userJobs)) to keep the allocation aligned with actual data.

func (h *HandlerLaunchd) Scheduled(profileName string) ([]Config, error) {
	jobs := make([]Config, 0, 10)
	if profileName == "" {
		profileName = "*"
	} else {
		profileName = strings.ToLower(profileName)
	}
	// system jobs
	systemJobs := h.getScheduledJob(profileName, constants.SchedulePermissionSystem)
	jobs = append(jobs, systemJobs...)
	// user jobs
	userJobs := h.getScheduledJob(profileName, constants.SchedulePermissionUser)
	jobs = append(jobs, userJobs...)

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