update spek. spotless, nexus dependencies

Author: adamint

build.gradle

@@ -1,7 +1,11 @@
 buildscript {
-    ext.kotlin_version = '1.3.41'
-    ext.dokka_version = '0.9.17'
+    ext.kotlin_version = '1.3.51'
+    ext.dokka_version = '0.10.0'
     ext.junit_version = '5.5.1'
+    ext.moshi_version = '1.8.0'
+    ext.json_version = '20190722'
+    ext.google_http_client_version = '1.32.1'
+    ext.spek_verson = '2.0.8'
 
     repositories { jcenter() }
 
@@ -12,9 +16,9 @@ buildscript {
 }
 
 plugins {
-    id "com.diffplug.gradle.spotless" version "3.24.1"
+    id "com.diffplug.gradle.spotless" version "3.25.0"
     id "base"
-    id "io.codearte.nexus-staging" version "0.21.0"
+    id "io.codearte.nexus-staging" version "0.21.1"
     id "com.bmuschko.nexus" version "2.3.1"
 }
 
@@ -34,24 +38,24 @@ dependencies {
     // Actual library dependencies
     compile 'com.neovisionaries:nv-i18n:1.26'
 
-    compile "com.squareup.moshi:moshi:1.8.0"
-    compile "com.squareup.moshi:moshi-kotlin:1.8.0"
-    compile "org.json:json:20190722"
+    compile "com.squareup.moshi:moshi:$moshi_version"
+    compile "com.squareup.moshi:moshi-kotlin:$moshi_version"
+    compile "org.json:json:$json_version"
 
-    compile "com.google.http-client:google-http-client:1.31.0"
+    compile "com.google.http-client:google-http-client:$google_http_client_version"
 
     compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-    
+
     // Spek testing requirements
-    testCompile('org.spekframework.spek2:spek-dsl-jvm:2.0.0') {
+    testCompile("org.spekframework.spek2:spek-dsl-jvm:$spek_version") {
         exclude group: 'org.jetbrains.kotlin'
     }
-    testRuntimeOnly('org.spekframework.spek2:spek-runner-junit5:2.0.0') {
+    testRuntimeOnly("org.spekframework.spek2:spek-runner-junit5:$spek_version") {
         exclude group: 'org.junit.platform'
         exclude group: 'org.jetbrains.kotlin'
     }
-    
+
     testCompile "org.junit.jupiter:junit-jupiter-api:$junit_version"
     testCompile "com.google.code.gson:gson:2.8.5"
     testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junit_version"
@@ -75,7 +79,8 @@ dokka {
 spotless {
     kotlin {
         ktlint()
-        licenseHeader '/* Spotify Web API - Kotlin Wrapper; MIT License, 2019; Original author: Adam Ratzman */'    // License header
+        licenseHeader '/* Spotify Web API - Kotlin Wrapper; MIT License, 2019; Original author: Adam Ratzman */'
+        // License header
     }
 }