security/kdbxviewer: Update to 0.1.11
- patch two instances of undefined behaviour
- patch a potential buffer overflow
Changelog: https://github.com/pepa65/kdbxviewer/releases/tag/v0.1.11
PR: 266258
MFH: 2022Q3
(cherry picked from commit cc0b41d49276447c1bbd052df4181829d44fe653)