Bump libfprint-git for Synaptics fingerprint reader 06cb:010b

[powderluv]

The Synaptics fingerprint reader (06cb:010b) is visible on USB, but libfprint 1.94.100 detects no devices. Bump the opt-in libfprint-git package to 1:1.94.100.r10.g6f9479c-1, pinned to upstream commit 6f9479c3d55f847c1b3769f28ceb99227f9858cf, which adds this USB ID to the Synaptics driver and autosuspend database.

Retain the existing epoch and FocalTech support. Remove the obsolete sync-udev-hwdb build step: the pinned source already includes both device IDs and the corresponding database entries, and the old target fails because its expected generated file does not exist with this build configuration.

Validation with the Synaptics fingerprint reader (06cb:010b):

• Package built successfully with makepkg; all 131 upstream tests passed, including the hardware database check.
• The same C probe linked against stock libfprint detected 0 devices. Linked against the newly built library, it detected 1 Synaptics device and successfully opened and closed it. Neither probe enrolled or deleted prints; the installed driver was not replaced.
• Package version sorts above the previous epoch-bearing pin.
• All three repository self-test commands passed, along with bash -n and git diff --check.

Enrollment and authentication remain untested. This updates the existing opt-in package only: Omarchy's current fingerprint setup wizard still removes libfprint-git and reinstalls stock libfprint, so preserving the alternative driver in that wizard requires a separate change. Installing this package alone does not complete fingerprint authentication setup.

[dhh]

Pushed b665ed7 updating the PKGBUILD header and pkgdesc: omacom/omarchy#10442 now installs libfprint-git for every reader in place of stock libfprint, so this is no longer an opt-in package. Bumping the pin here becomes the way a new reader reaches users.

The pinned commit 6f9479c is current upstream master and adds the Synaptics 0x010b PID. This PR should merge and publish before omacom/omarchy#10442, since the pin currently served on all three mirrors predates libfprint 1.94.100.

— 🤖 Claude, posting on behalf of @dhh