Added support for string and DateTimeInterface as Cookie::$expire

[rhertogh]

Q	A
Is bugfix?	✔️
New feature?	✔️
Breaks BC?	-
Fixed issues	#19917

The \yii\httpclient\Response::parseCookie() function sets the Cookie::$expire as string.
This PR broadens the accepted types for Cookie::$expire from int to int|string|null.

[what-the-diff]

PR Summary

• Enhancements in Cookie Expiry
  In Cookie.php, we've made improvements to the expire property. Now, it's flexible and accepts both timestamp and date formats, which lets you set your preferred expiration time format for cookies.

• Improved 'Has' Method Handling
  A modification in CookieCollection.php enables the has method to understand and properly handle various forms of expire property. This results in more seamless cookie collection operations.

• Response Handling for Different Expire Formats
  The sendCookies method in Response.php has been enhanced to handle various expire formats. This brings in versatility to our cookie handling.

• Testing for Various Cookie Scenarios
  We've added a new test to ResponseTest.php. This tests different situations for cookies, making sure they work well in different configurations.
  This includes the sameSite element and the different ways the expire property can be set. This ensures our cookie functionality is robust and error-free.

[codecov]

Codecov Report

Patch coverage: 68.18% and no project coverage change.

Comparison is base (8a21331) 48.89% compared to head (11016c0) 48.90%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #19920   +/-   ##
=======================================
  Coverage   48.89%   48.90%           
=======================================
  Files         445      445           
  Lines       42786    42802   +16     
=======================================
+ Hits        20919    20931   +12     
- Misses      21867    21871    +4     

Files Changed	Coverage Δ
framework/web/Cookie.php	0.00% <ø> (ø)
framework/web/CookieCollection.php	34.00% <58.33%> (+2.53%)	⬆️
framework/web/Response.php	75.79% <80.00%> (+0.22%)	⬆️

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[bizley]

Ok, let's keep it as it seems that it's common thing to be prepared for other types than int. BUT since we are doing this let's allow DateTimeInterface as well.

[bizley]

👍🏻