v3.8.2

Summary

• Technical update and bug fix

What's Changed

• prepare new version release by @lee1043 in #1225
• Update xcdat_openxml.py for bug fix by @lee1043 in #1230
• consider 4-d variables for plot climatology by @lee1043 in #1229
• Update version by @lee1043 in #1226

Full Changelog: v3.8.1...v3.8.2