fix firebase dependency issue

Author: wenxi-zeng

README.md

@@ -7,13 +7,13 @@ Add Firebase device mode support to your applications via this plugin for [Analy
 To install the Segment-Firebase integration, simply add this line to your gradle file:
 
 ```
-implementation 'com.segment.analytics.kotlin.destinations:firebase:1.4.4'
+implementation 'com.segment.analytics.kotlin.destinations:firebase:<latest_version>'
 ```
 
 Or the following for Kotlin DSL
 
 ```
-implementation("com.segment.analytics.kotlin.destinations:firebase:1.4.4")
+implementation("com.segment.analytics.kotlin.destinations:firebase:<latest_version>")
 ```
 
 

lib/build.gradle.kts

@@ -56,8 +56,7 @@ dependencies {
 
 // Partner Dependencies
 dependencies {
-    implementation(platform("com.google.firebase:firebase-bom:28.2.1"))
-    implementation("com.google.firebase:firebase-analytics-ktx")
+    implementation("com.google.firebase:firebase-analytics-ktx:20.1.0")
 }
 
 // Test Dependencies