@Suyash Surve Hey brother!! Basically here you have to write scrollTrigger (s is small) and not ScrollTrigger.
tl.to(camera.position, {
x: -5,
z: -5,
ease: "power1.inOut",
scrollTrigger: {
trigger: ".section-two",
scrub: 1,
markers: true,
start: "top bottom",
end: "top top",
},
});