PySPEDAS v2.2.2

What's Changed

• fix: reset right_axis per pseudovariable, so it doesn't set for all p… by @LenaMacke in #1530
• 550 add functionality for filling in underover lines by @DCarSunDr in #1531
• Fix netcdf missing value handling by @nickssl in #1534
• Pin certifi>=2026.10.19 by @jameswilburlewis in #1535

Full Changelog: v2.2.1...v2.2.2