devel/pear: update to 1.10.12 release

PEAR 1.10.6 => 1.10.12
Bundled packages:
Archive_Tar 1.4.3 => 1.4.10
Console_Getopt 1.4.1 => 1.4.3
XML_Util 1.4.3 => 1.4.5

Respect PHPBASE
Allow build with php80

While here, take maintainership

PR: 250809
Submitted by: myself (fluffy)
Approved by: maintainer (miwi)