Fixes bug #74705 Wrong ReflectionInfo for Collator::getSortKey()

[TysonAndre]

https://secure.php.net/manual/en/collator.getsortkey.php

See https://3v4l.org/hurjo

[remicollet]

• This fix the getSortKey issue, but not the collator_get_sort_key one
• skip line is not needed
• test is failing

=====================================================================
FAILED TEST SUMMARY
---------------------------------------------------------------------
Bug #74705 Wrong reflection on Collator::getSortKey [ext/intl/tests/bug74705.phpt]
=====================================================================
$ cat ext/intl/tests/bug74705.diff
003+ int(3)
004+ int(3)
003- int(2)
004- int(2)

Can you please also use normalized commit message (Fix bug #...) so bug is auto-close on merge.

I will take care of missing part

[remicollet]

Merged
5f07a89
78970d5
c4d7cfa

@TysonAndre please close this