www/p5-WWW-Mechanize-Shell: Update to 0.62
Major changes in 0.60:
- Delete proxy-related environment variables when testing
Major changes in 0.61:
- Various test suite updates, no code updates, no need to upgrade
- Test suite now runs in parallel
Major changes in 0.62
- Test stability fix
Full changelog: https://metacpan.org/dist/WWW-Mechanize-Shell/changes