feat(vercel-kv): support ttl for setItem

[azophy]

here we add new option 'ttl' both for driver setup config & for set() method. the interface & implementation took notes from existing redis driver.

🔗 Linked issue

this resolve #266

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

I have implemented the proposal in #266 . To test it, I have run pnpm vitest run --coverage by giving my Vercel KV's credential, and the result shows that it has passed completely.

However because it only uses existing Vercel KV's test suite, it shouldn't have tested the new key expiration functionality. And I'm not sure how I should create the test for this particular feature. I've looked into Redis driver test suite, but I couldn't find section for testing key expiration which I could follow. Maybe other maintainers could give me some pointer? @pi0 @Hebilicious

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.
• create appropriate tests

[nuxt-studio]

✅ Live Preview ready!

Name	Edit	Preview	Latest Commit
unstorage	Edit on Studio ↗︎	View Live Preview	b040061

[Hebilicious]

Linking #262 for reference. Do we go with this syntax for every driver @pi0 ?

[Hebilicious]

I like the default ttl options !

[azophy]

Right now, I've just replaced unstorage dependency for one of my NuxtJs project with a github branch based on this PR. I know that this kind of manual testing is not ideal, but currently this is the best approach I could came out with to verify that this code have worked.

my project: https://papan-skor.vercel.app
github repo: https://github.com/azophy/papan-skor
temporary github branch that serve build of this PR: https://github.com/azophy/unstorage/tree/feat/vercelkv-ttl-build
commit that introduce dependency replacement: azophy/papan-skor@67cc078

I verify that the new ttl option is indeed worked by manually checking the results of Redis TTL command from my Vercel KV dashboard

[pi0]

Thanks!

[codecov]

Codecov Report

Merging #269 (b040061) into main (a0a1cdd) will increase coverage by 0.39%.
Report is 2 commits behind head on main.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #269      +/-   ##
==========================================
+ Coverage   76.55%   76.94%   +0.39%     
==========================================
  Files          26       26              
  Lines        3169     3223      +54     
  Branches      473      473              
==========================================
+ Hits         2426     2480      +54     
  Misses        742      742              
  Partials        1        1              

Files Changed	Coverage Δ
src/index.ts	100.00% <100.00%> (ø)