PAR Packager

Changes for 1.062 - 2024-03-05

• Fix #84: PAR::Packer packaged scripts lose the ability to parse UTF-8 arguments from the command line
• pod: explain how REGEX is applied in "--modfilter=FILTER=REGEX"
• require PAR >= 1.020
• add new test t/87-xs-cross.t to investigate rschupp/PAR#11
• move some test modules around and fix up tests accordingly
• bump version of actions/checkout