Bump aboutlibraries_version from 8.8.3 to 8.8.4

Bumps `aboutlibraries_version` from 8.8.3 to 8.8.4.

Updates `aboutlibraries-plugin` from 8.8.3 to 8.8.4

Updates `aboutlibraries` from 8.8.3 to 8.8.4
- [Release notes](https://github.com/mikepenz/AboutLibraries/releases)
- [Changelog](https://github.com/mikepenz/AboutLibraries/blob/develop/gradle-release.gradle)
- [Commits](mikepenz/AboutLibraries@v8.8.3...v8.8.4)

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -31,7 +31,7 @@ buildscript {
     ext.kotlin_version = '1.4.31'
     ext.anko_version = '0.10.8'
 
-    ext.aboutlibraries_version = '8.8.3'
+    ext.aboutlibraries_version = '8.8.4'
 
     repositories {
         maven {