modules/decky-loader: Add pkg paths to LD_LIBRARY_PATH #590

Job	Run time
Generate matrix	17s
decky-loader	1m 41s
galileo-mura	31s
gamescope	3m 8s
gamescope-session	6m 18s
jovian-documentation	32s
jovian-greeter	28s
jovian-hardware-survey	2m 30s
jovian-steam-protocol-handler	2m 21s
jovian-stubs	28s
jupiter-dock-updater-bin	25s
jupiter-fan-control	24s
jupiter-hw-support	1m 26s
linux-firmware-jupiter	2m 19s
linux_jovian	26s
mangohud	4m 27s
mesa-radv-jupiter	4m 13s
opensd	30s
powerbuttond	30s
sdgyrodsu	25s
steam	1m 54s
steam_notif_daemon	31s
steamdeck-bios-fwupd	35s
steamdeck-dsp	35s
steamdeck-firmware	2m 25s
steamdeck-hw-theme	1m 23s
steamos-polkit-helpers	2m 5s
wireplumber-jovian	25s
	43m 12s

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