Cannot use plugin in a project using Gradle 8 due to namespace

[derTuca]

The main error is this:

Incorrect package="dev.jerson.fast_rsa" found in source AndroidManifest.xml: /home/alex/.pub-cache/hosted/pub.dev/fast_rsa-3.6.1/android/src/main/AndroidManifest.xml.
Setting the namespace via the package attribute in the source AndroidManifest.xml is no longer supported.
Recommendation: remove package="dev.jerson.fast_rsa" from the source AndroidManifest.xml: /home/alex/.pub-cache/hosted/pub.dev/fast_rsa-3.6.1/android/src/main/AndroidManifest.xml.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':fast_rsa:processDebugManifest'.
> A failure occurred while executing com.android.build.gradle.tasks.ProcessLibraryManifest$ProcessLibWorkAction
   > Incorrect package="dev.jerson.fast_rsa" found in source AndroidManifest.xml: /home/alex/.pub-cache/hosted/pub.dev/fast_rsa-3.6.1/android/src/main/AndroidManifest.xml.
     Setting the namespace via the package attribute in the source AndroidManifest.xml is no longer supported.
     Recommendation: remove package="dev.jerson.fast_rsa" from the source AndroidManifest.xml: /home/alex/.pub-cache/hosted/pub.dev/fast_rsa-3.6.1/android/src/main/AndroidManifest.xml.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

BUILD FAILED in 2s
Error: Gradle task assembleProdDebug failed with exit code 1

The solution would seem to be to add namespace to build.gradle's android section as seen here and removing it from AndroidManifest.