MAPL 2.21.2

This is a bugfix release which has a fix for an issue (#1530) which exposed an uninitialized logical when passing to Cap an external clock.

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From CHANGELOG.md

Fixed

• Initialize cap%lperp in MAPL_CapGridComp.F90 (see Issue #1530)

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What's Changed

• Hotfix 1530: Initialize lperp by @mathomp4 in #1531

Full Changelog: v2.21.1...v2.21.2