Add security considerations page


Document the potential security issues when loading Qt Positioning
plugins.

Fixes: QTBUG-150543
Pick-to: 6.12
Change-Id: I1855a6a70b6770edb62d14b585d04a9af17be2ce
Reviewed-by: Mate Barany <mate.barany@qt.io>
commit9617bbd16aea60a9b0b997ded1b5278989ef9c6e
parent0212b489ea33572e76cf2ecd41c76cc8370f8c8c
authorIvan Solovev <ivan.solovev@qt.io>
committerIvan Solovev <ivan.solovev@qt.io>
commit timeMon, 21 Sep 2026 15:55:18 +0000