Replace deprecated getRuntimePath() by using Runfiles

[renjiezh]

Describe the bug
getRuntimePath() is deprecated. It should be replaced by using Runfiles.getRuntimePath with Runfiles.preload().

Steps to reproduce
N/a

Component(s) affected
N/a

Version
v0.5.7

Environment
N/a

Additional context

[SanjayVas]

Duplicate of #1530