databases/mantis: Update to 2.25.2.

Details:

• Many bugfixes (including some security related) available in the new mantis release 2.25.2.

PR: 257066
Reported by: Zoltan ALEXANDERSON BESSE <zab@zltech.eu> (maintainer)
MFH: 2021Q3
Security: CVE-2021-3603

		CVE-2021-33557
		CVE-2020-36326