Bump signon-plugin-oauth2 release to 5 to supersede EPEL

EPEL's signon-plugin-oauth2 has release 4. Our release 1 was seen as a
downgrade by dnf, preventing automatic replacement during upgrade.
Bump to release 5 so dnf treats it as an upgrade.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

signon-plugin-oauth2/signon-plugin-oauth2.spec

@@ -4,7 +4,7 @@
 
 Name:           signon-plugin-oauth2
 Version:        0.25^%{gitdate}.%{shortcommit0}
-Release:        1%{?dist}
+Release:        5%{?dist}
 Summary:        OAuth2 plugin for the Accounts framework
 
 License:        LGPL-2.1-or-later
@@ -56,5 +56,8 @@ rm -rvf %{buildroot}/%{_sysconfdir} 2>/dev/null || true
 %{_libdir}/pkgconfig/signon-oauth2plugin.pc
 
 %changelog
+* Fri Aug 28 2026 SonicDE <dev@sonicde.org> - 0.25^20231216.fab6988-5
+- Bump release to 5 to supersede EPEL's release 4
+
 * Fri Aug 28 2026 SonicDE <dev@sonicde.org> - 0.25^20231216.fab6988-1
 - Build for SonicDE, link against sonic-frameworks-sso