fix: wheel zoom on logarighmic scale

[kurkle]

fix: #821

[github-actions]

Size Change: +513 B (+2.35%)

Total Size: 22.4 kB

Filename	Size	Change
dist/chartjs-plugin-zoom.esm.js	8.55 kB	+206 B (+2.47%)
dist/chartjs-plugin-zoom.js	8.71 kB	+207 B (+2.44%)
dist/chartjs-plugin-zoom.min.js	5.1 kB	+100 B (+2%)

_{compressed-size-action}