[Kotlinx Coroutines Core] Change: Downgrade to 1.3.5

Kotlin/kotlinx.coroutines#2004

Author: guhungry

app/build.gradle

@@ -23,7 +23,7 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.6'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.5'
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     testImplementation 'junit:junit:4.13'