Bump spotbugs-gradle-plugin from 4.5.1 to 4.6.0

    dependencies {

        classpath 'com.android.tools.build:gradle:4.1.0'

        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'

        classpath 'gradle.plugin.com.github.spotbugs.snom:spotbugs-gradle-plugin:4.5.1'

        classpath 'gradle.plugin.com.github.spotbugs.snom:spotbugs-gradle-plugin:4.6.0'

        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.14.2"

    }