Bump pear-pear.horde.org/Horde_Mail from 2.6.4 to 2.6.5
Bump pear-pear.horde.org/Horde_Mail from 2.6.4 to 2.6.5

Bumps pear-pear.horde.org/Horde_Mail from 2.6.4 to 2.6.5.

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