v2.6.0

What's Changed

• Argentina - Fix Weekday shift logic by @tinohager in #687
• Switzerland - Fix Berchtolds Day by @tinohager in #688
• Switzerland - Fix Epiphany by @tinohager in #689
• Switzerland - Fix Federal Day of Thanksgiving by @tinohager in #696
• Switzerland - Fix Saint Joseph's Day by @tinohager in #690
• Switzerland - Fix Easter Monday by @tinohager in #691
• Switzerland - Fix Whit Monday by @tinohager in #693
• Switzerland - Fix Corpus Christi by @tinohager in #694
• Switzerland - Fix Immaculate Conception by @tinohager in #695
• Switzerland - Fix Labour Day by @tinohager in #692

Full Changelog: v2.5.3...v2.6.0