fix: pin go toolchain to 1.26.9

[dogancanbakir]

Fixes #69

Adds toolchain go1.26.9; the module's minimum Go version stays 1.26.0.

Summary by CodeRabbit

• Chores
  • Updated the project’s Go toolchain configuration. The minimum Go language version remains unchanged.
  • No user-facing features or behavior changed.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: a76b13fe-f8ef-471f-b006-830831f87a32

📥 Commits

Reviewing files that changed from the base of the PR and between 1e86853 and 3cdff87.

📒 Files selected for processing (1)

• go.mod

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

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Walkthrough

The module now specifies Go toolchain version 1.26.9. Its Go language version remains 1.26.0.

Changes

Go Toolchain Version

Layer / File(s)	Summary
Specify Go toolchain go.mod	Adds the Go 1.26.9 toolchain directive. The Go language version remains 1.26.0.

Priority: ➖ Normal

Estimated code review effort: 1 (Trivial) | ~3 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 3cdff

CI and release workflows use Go 1.26.9 while retaining the module’s 1.26.0 minimum; that toolchain fixes both reported vulnerabilities. No actionable merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: pinning the Go toolchain to version 1.26.9.
Linked Issues check	✅ Passed	Issue [#69] requires CI to stop using Go 1.26.0 for govulncheck, which reports the listed standard-library vulnerabilities. At the reviewed head, go.mod retains go 1.26.0 and declares `toolchain…
Out of Scope Changes check	✅ Passed	The reviewed change is limited to the go.mod Go version declarations. The change adds toolchain go1.26.9 and preserves go 1.26.0, which directly supports issue [#69]. No unrelated change is show…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…

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_{A rabbit checks the toolchain line,
“Go 1.26.9 looks fine!”
The language version stays in place,
A tidy change, a steady pace.
Then off I hop through fields of green!}

_{Comment @coderabbitai help to get the list of available commands.}