ports-mgmt/poudriere-dsh2dsh: Update 3.4.99.20260216 => 3.4.99.20260219

Upstream changes:

• testport: Fix deleting existing packages (regression from Sep 2025)
• testport: Default to not forcing TRYBROKEN; require -T.
• destroyfs: Cleanup tmpfs mountpoints. (such as image cleanup)
• bulk shlib tracking: Don't consider base libprivate*.so as missing.
• bulk shlib tracking: Remove the 'misses all libraries' case; always print a specific library that is missing.

PR: 293337