Replace uses of deprecated Gradle assignment syntax

build.gradle

@@ -18,8 +18,8 @@ repositories {
 	mavenCentral()
 	if (isSnapshot) {
 		maven {
-			name("Sonatype snapshots")
-			url("https://oss.sonatype.org/content/repositories/snapshots")
+			name = "Sonatype snapshots"
+			url = "https://oss.sonatype.org/content/repositories/snapshots"
 		}
 	}
 }