Fix module still using dagger annotation

Author: jmartinesp

libraries/featureflag/impl/src/main/kotlin/io/element/android/libraries/featureflag/impl/di/FeatureFlagModule.kt

@@ -7,10 +7,10 @@
 
 package io.element.android.libraries.featureflag.impl.di
 
-import dagger.multibindings.ElementsIntoSet
 import dev.zacsweers.metro.AppScope
 import dev.zacsweers.metro.BindingContainer
 import dev.zacsweers.metro.ContributesTo
+import dev.zacsweers.metro.ElementsIntoSet
 import dev.zacsweers.metro.Provides
 import io.element.android.libraries.featureflag.impl.FeatureFlagProvider
 import io.element.android.libraries.featureflag.impl.PreferencesFeatureFlagProvider