Update the project to latest

[itxAdie]

Hy,
My name is Adeel Nazim. I have made these changes to this package and requesting for pull.

1. update all packages in example
2. upgrade kotlin version and targetSdkVersion in example
3. updated dependencies in main project also resolve the Kotlin Gradle issue
4. update compileSdkVersion after testing
5. after update and tested all the changes working fine

[itxAdie]

Resolve the issue: dependencies do not satisfy the required version,
also did some other changes.

[Vinayak006]

hey @itxAdie , what could be possible issue for the below:

Execution failed for task ':app:checkDebugAarMetadata'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
   > Could not find com.tom_roush:pdfbox-android:2.0.27.0.
     Searched in the following locations:
       - https://dl.google.com/dl/android/maven2/com/tom_roush/pdfbox-android/2.0.27.0/pdfbox-android-2.0.27.0.pom
       - https://repo.maven.apache.org/maven2/com/tom_roush/pdfbox-android/2.0.27.0/pdfbox-android-2.0.27.0.pom
       - https://storage.googleapis.com/download.flutter.io/com/tom_roush/pdfbox-android/2.0.27.0/pdfbox-android-2.0.27.0.pom
       - https://jcenter.bintray.com/com/tom_roush/pdfbox-android/2.0.27.0/pdfbox-android-2.0.27.0.pom
     Required by:
         project :app > project :pdf_text

It would be so helpful, if you could light on this