[DaniusKalv]

Summary

• Packaging for 0.7.2+rpt20260817 resync. Brings libcamera 0.7.2, reworked delayed sensor controls, AGC digital gain floored at 1.0 and helpers for IMX355, IMX662 and IMX678.
• IMX585: pinned frame rates land exactly through a line length search, analogue gain profile extended from 8x to 16x, sensor test patterns reset to off at start.
• Raspberry Pi's public pios/trixie branch no longer receives their releases. README.source now points reseeds at archive source packages. Their 0.7.2 recipe matches our seed apart from changelog entries, so debian/ carries no other change and all patches apply as is.

Test plan

• Install built package over current one on a Pi 5 and confirm rpicam-hello --list-cameras enumerates attached sensor