Fix proguard compile error caused by metadata-extractor module

[finnholland]

Proguard failed when run with minify and shrink due to a missing class in metadata-extractor
ERROR: R8: Missing class java.awt.Point (referenced from: void com.drew.metadata.mp4.boxes.TrackHeaderBox.addMetadata(com.drew.metadata.mp4.Mp4Directory))

This issue has been fixed since so I'm upgrading to 2.19.0
I tested locally and it seems to be working correctly but feel free to confirm.

[Copilot]

Pull Request Overview

This PR updates the metadata-extractor library dependency from a commit hash reference to a semantic version number.

• Changes the dependency reference from a Git commit SHA (321551df00) to a proper semantic version (2.19.0)

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[Copilot]

Using the JitPack reference 'com.github.drewnoakes:metadata-extractor' with a version number is problematic. The metadata-extractor library is published to Maven Central and should be referenced as 'com.drewnoakes:metadata-extractor:2.19.0' instead. The 'com.github.*' group ID is used by JitPack for building from GitHub, but this library has official Maven Central releases that should be preferred.

Suggested change

	implementation 'com.github.drewnoakes:metadata-extractor:2.19.0'
	implementation 'com.drewnoakes:metadata-extractor:2.19.0'

[jtklein]

@budowski do you remember any reason why we pinned this dependency to this specific commit (drewnoakes/metadata-extractor@321551df00), and are not using the maven version here?