[ HotFix ] : v0.3.2 fix memory leak

[maulik-mk]

HotFix

This pull request includes a minor version bump and a small update to the FFmpeg encoding flags. The main changes are updating the version to 0.3.2 across the project and removing the pmode and pme parameters from the x265 encoder flags.

Version and metadata updates:

• Bumped version from 0.3.1 to 0.3.2 in both Dockerfile and package.json for consistency across the project. [1] [2]
• Updated the Docker image description to remove the mention of VMAF, reflecting the current build contents.

FFmpeg encoder flag changes:

• Removed pmode=1 and pme=1 from the -x265-params string in videoEncoderFlags, which may affect parallel mode and motion estimation settings for x265 encoding.