Ubuntu 22.04: Add Jammy i386 security repository


Enable the i386 security package index during Ubuntu 22.04 provisioning
to keep 32-bit and amd64 package versions aligned to avoid APT
dependency conflicts.

This fixes the 'libx11-6 : Breaks: libx11-6:i386' error

Pick-to: 6.12 6.8 6.5
Change-Id: Ied5574c7f1e80f69ebaa8a6f5b70047f7ac81ddd
Reviewed-by: Simo Fält <simo.falt@qt.io>
commit26f3f0a84a56d04d924a2c30ed7b327bbc718d0c
parente2f5dc8024be80c62f0b91affdfc273783d974bd
authorElias Toivola <elias.toivola@qt.io>
committerElias Toivola <elias.toivola@qt.io>
commit timeTue, 20 Oct 2026 19:36:26 +0000