Fedora, EPEL9+: drop the initial “0.” from the Release

This was left over from when the snapshot info was in the Release field
instead of the Version field.

stb.spec

@@ -24,7 +24,7 @@ Name:           stb
 #   https://github.com/nothings/stb/issues/1101
 %global snapinfo ^%{snapdate}git%(c='%{commit}'; echo "${c:0:7}")
 Version:        0%{snapinfo}
-Release:        %autorelease -p
+Release:        %autorelease
 Summary:        Single-file public domain libraries for C/C++
 
 # See LICENSE.