fix(types): correct deleteCookie attributes

[Ram-blip]

This relates to...

Fixes #5458

Rationale

deleteCookie(headers, name, attributes) supports path and domain at runtime for deleting path-scoped cookies, but the TypeScript declaration currently exposes the attributes object as { name?: string, domain?: string }.

This causes TypeScript to reject valid usage with path, while accepting name even though the cookie name is already provided as the second positional argument.

Changes

Updates the deleteCookie TypeScript declaration from:

{ name?: string, domain?: string }

to:

{ path?: string, domain?: string }

Adds tsd coverage to verify that:

• path and domain are accepted as delete-cookie attributes
• name is rejected inside the attributes object

Features

N/A

Bug Fixes

Fixes the deleteCookie TypeScript declaration so it matches runtime behavior and documentation.

Breaking Changes and Deprecations

N/A

Status

• I have read and agreed to the Developer's Certificate of Origin
• Tested
• Benchmarked (optional)
• Documented
• Review ready
• In review
• Merge ready

[mcollina]

lgtm

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.47%. Comparing base (667d8a3) to head (7f3d2cc).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5461      +/-   ##
==========================================
- Coverage   93.48%   93.47%   -0.02%     
==========================================
  Files         110      110              
  Lines       37115    37115              
==========================================
- Hits        34697    34693       -4     
- Misses       2418     2422       +4     

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