Bump com.github.dcendents:android-maven-gradle-plugin

Bumps [com.github.dcendents:android-maven-gradle-plugin](https://github.com/dcendents/android-maven-gradle-plugin) from 1.5 to 2.1.
- [Release notes](https://github.com/dcendents/android-maven-gradle-plugin/releases)
- [Commits](dcendents/android-maven-gradle-plugin@1.5...2.1)

---
updated-dependencies:
- dependency-name: com.github.dcendents:android-maven-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

android-refimpl-app/build.gradle

@@ -16,7 +16,7 @@ buildscript {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.7.21"
 
         // used to generate a POM file
-        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files