Android release build failing on sourcemap upload - Could not get unknown property 'X'

[leonardorib]

I first reported this issue #1449

This was supposed to be fixed in 16.0.1 with 0fc8f83#diff-7e4a624bea3b06f276592c23d910cd7df04a03419f6de656c296040ecd14c090

But it introduced a new problem when building the Android release build:

> Task :instabug-reactnative:uploadSourcemapsDev FAILED
Script failed with exit code 1
Standard Error:

Standard Output:
Couldn't find Instabug's app token
Failed to upload source map file.
Reason: Could not get unknown property 'X' for task ':instabug-reactnative:uploadSourcemapsDev' of type org.gradle.api.DefaultTask.

[leonardorib]

Just opened a PR for it. Looks like it was this wrong "X" added in the file #1454