Fix: Chucker dependency cannot be resolved when running verify newproject script

[ryan-conway]

Issue

CI fails when running the verify newproject script.

* What went wrong:
Execution failed for task ':app:dataBindingMergeDependencyArtifactsProductionDebug'.
> Could not resolve all files for configuration ':app:productionDebugCompileClasspath'.
   > Failed to transform library-3.5.2.aar (com.github.chuckerteam.chucker:library:3.5.2) to match attributes {artifactType=android-databinding, org.gradle.category=library, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-api}.
      > Could not find library-3.5.2.jar (com.github.chuckerteam.chucker:library:3.5.2).
        Searched in the following locations:
            https://jitpack.io/com/github/chuckerteam/chucker/library/3.5.2/library-3.5.2.aar
            https://jitpack.io/com/github/chuckerteam/chucker/library/3.5.2/library-3.5.2.jar

We should fetch Chucker from Maven instead of Jitpack to prevent this from occuring

The syntax we implemented to get maven (Jitpack) should be in Kotlin format:

repositories {
  maven { url = uri("https://www.jitpack.io" ) }
}

Ref: https://stackoverflow.com/a/66926254/11393626

Expected

CI should be able to execute the verify newproject script successfully

Steps to reproduce

1. Open a PR
2. Let CI run