Update to Kotlin 1.5.20 and update ktfmt

Author: fwcd

build.gradle

@@ -11,7 +11,6 @@ java {
 allprojects {
     repositories {
         mavenCentral()
-        maven { url 'https://cache-redirector.jetbrains.com/kotlin.bintray.com/kotlin-plugin' }
     }
 }
 

gradle.properties

@@ -1,4 +1,4 @@
 projectVersion=1.1.2
-kotlinVersion=1.4.30-RC-232
+kotlinVersion=1.5.20
 exposedVersion=0.32.1
 javaVersion=11

server/build.gradle

@@ -39,17 +39,14 @@ dependencies {
     implementation 'org.eclipse.lsp4j:org.eclipse.lsp4j.jsonrpc:0.10.0'
     implementation "org.jetbrains.kotlin:kotlin-compiler:$kotlinVersion"
     implementation "org.jetbrains.kotlin:kotlin-scripting-compiler:$kotlinVersion"
-    implementation "org.jetbrains.kotlin:kotlin-scripting-compiler-impl:$kotlinVersion"
     implementation "org.jetbrains.kotlin:kotlin-scripting-jvm-host-unshaded:$kotlinVersion"
     implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlinVersion"
-    implementation "org.jetbrains.kotlin:ide-common-ij202:$kotlinVersion"
-    // implementation("org.jetbrains.kotlin:kotlin-plugin-ij201:$kotlinVersion") { transitive = false }
     implementation 'org.jetbrains:fernflower:1.0'
     implementation "org.jetbrains.exposed:exposed-core:$exposedVersion"
     implementation "org.jetbrains.exposed:exposed-dao:$exposedVersion"
     implementation "org.jetbrains.exposed:exposed-jdbc:$exposedVersion"
     implementation 'com.h2database:h2:1.4.200'
-    implementation 'com.github.fwcd.ktfmt:ktfmt:22bd538a1c'
+    implementation 'com.github.fwcd.ktfmt:ktfmt:8ef3ee752a'
     implementation 'com.beust:jcommander:1.78'
 
     testImplementation 'org.hamcrest:hamcrest-all:1.3'