Morning all, wondering if somebody could please shed some light

Had my car sitting at work for 9 hours yesterday and when I started it I heard a 2 second ish rattle/squeek which I'm unaware of and this has never happened before. I turned the car off and on again but didn't hear it again. Around 10pm last night I had to move my car, so turned it on after it been sitting with no movement for 5 hours, cold engine but heard nothing. Then again this morning I heard the squeek/rattle again

Any i