use project-wide coroutinesVersion

Author: thatfiredev

firebase-storage/ktx/ktx.gradle

@@ -61,7 +61,7 @@ dependencies {
     implementation project(':firebase-storage')
     implementation 'androidx.annotation:annotation:1.1.0'
     implementation 'com.google.android.gms:play-services-tasks:18.0.1'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion"
 
     androidTestImplementation 'junit:junit:4.12'
     androidTestImplementation "com.google.truth:truth:$googleTruthVersion"