fix(all): Add additional consumer proguard rules for missing classes (#3000)

Author: mattcreaser

configuration/consumer-rules.pro

@@ -4,4 +4,10 @@
 -keep class com.amplifyframework.** { *; }
 
 # We check for specific engine classes on the classpath to determine whether Amplify should use OkHttp4 instead of OkHttp5
--keepnames class aws.smithy.kotlin.runtime.http.engine.okhttp4.*
+-keepnames class aws.smithy.kotlin.runtime.http.engine.okhttp4.*
+
+# OkHttp4 will not be present if not explicitly added by the customer, don't warn if it's missing
+-dontwarn aws.smithy.kotlin.runtime.http.engine.okhttp4.OkHttp4Engine
+
+# This Tink annotation is missing from an upstream dependency
+-dontwarn com.google.errorprone.annotations.Immutable