Reduce oscillations of buoys in perception task

[tejalbarnwal]

aims to close #689

Summary:
A detailed analysis of the various parameters can be found in the discussion of the associated issue.
The following updates have been done:

1. Round Buoys:
   geometry radius updated to 0.21(for both perception_task1 and perception_task2)
   updated drag coefficient to 75(for both perception_task1 and perception_task2)
   updated spawning z=0.7 in perception_task1
2. Marker Buoys
   Updated spawning z=0.7 for both (perception_task1 and perception_task2)
   Updated linear drag coefficient to 50 in perception_task2 to reduce the magnitude of oscillations a little.

Test:
Run 2023_practice/practice_2023_perception1_task and 2023_practice/practice_2023_perception2_task worlds

Results:

perception_task1.mp4

perception_task2.mp4

[caguero]

This changes work for me great.

I think we should propagate these changes to the rest of the worlds in a separate PR for the next release.