Bug#1030748: tracker.debian.org doesn't display the correct linux kernel rc upstream version

[xevilstar <vmxevilstar@gmail.com>]

Package: tracker.debian.org
Severity: important
X-Debbugs-Cc: vmxevilstar@gmail.com

Dear Maintainer,

I have noticed that on https://tracker.debian.org/pkg/linux the new upstream version takes ages to 
update. for example now it displays "A new upstream version is available: 6.2~rc6" while on 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
and
https://kernel.org/
the latest upstream rc version is mainline:	6.2-rc7	2023-02-05

Thanks for your time in fixing this