Update documentation for setCookieParams

[clemens-it]

The link for more information about "sameSite" leads to a 404 Not Found.

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues

[what-the-diff]

PR Summary

• Updating Documentation Link in Session.php
  The change made here has updated an obsolete link in Session.php to a new website URL. This new link gives users more detailed information about the attribute "sameSite".

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (c8c0ea9) 48.89% compared to head (29b7d7a) 48.89%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #19910   +/-   ##
=======================================
  Coverage   48.89%   48.89%           
=======================================
  Files         445      445           
  Lines       42786    42786           
=======================================
  Hits        20919    20919           
  Misses      21867    21867           

Files Changed	Coverage Δ
framework/web/Session.php	41.12% <ø> (ø)

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[rhertogh]

@clemens-it Why was the PR closed?

[clemens-it]

I deleted the repository from which originated the PR prematurely. My mistake.
Please advice, should I create a new PR from scratch?

[rhertogh]

Yes please, since I don't think this one can be reopened from a new repo (although we could try if it's created under the same name).

[clemens-it]

Ok, I just created a new PR -> #19921