gdm: bump release to force reinstall with varlink mode fix

The EL10 systemd 257 sd_varlink_server_listen_address() rejects any
mode bits outside the lower 9 (asserts (m & ~0777) == 0 → EINVAL).
Upstream GDM 49 passes 0666 | SD_VARLINK_SERVER_MODE_MKDIR_0755
(0x40000000), which triggers this. The patch 0001-el10-force-varlink-mode-0666.patch
correctly zeroes the constant, but the previous build had the same NVR
so dnf reinstall pulled from cache. Bump release tag so COPR produces
a new-NVR RPM that can be force-installed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: hanthor

src/gnome-49/gdm/gdm.spec

@@ -16,7 +16,7 @@
 Name:           gdm
 Epoch:          1
 Version:        49.2
-Release:        %autorelease
+Release:        %autorelease -e el10varlink
 Summary:        The GNOME Display Manager
 
 License:        GPL-2.0-or-later