Merge pull request #39 from k163377/feature

Update libs.

Author: k163377

build.gradle.kts

@@ -2,11 +2,13 @@ plugins {
     id("maven")
     id("java")
     id("org.jetbrains.kotlin.jvm") version "1.3.72"
+    // その他補助系
     id("org.jlleitschuh.gradle.ktlint") version "9.2.1"
+    id("com.github.ben-manes.versions") version "0.28.0"
 }
 
 group = "com.mapk"
-version = "0.30"
+version = "0.31"
 
 java {
     sourceCompatibility = JavaVersion.VERSION_1_8
@@ -38,7 +40,7 @@ dependencies {
     }
     // 現状プロパティ名の変換はテストでしか使っていないのでtestImplementation
     // https://mvnrepository.com/artifact/com.google.guava/guava
-    testImplementation(group = "com.google.guava", name = "guava", version = "28.2-jre")
+    testImplementation(group = "com.google.guava", name = "guava", version = "29.0-jre")
 }
 
 tasks {