[Inline Reply] Use Pinned info separately for expanded check

Bug: 373279035
Test: atest StatusBarRemoteInputCallbackTest
atest ExpandableNotificationRowTest.java
manual: Receive a HUN with WA and reply using inline reply feature. Let this HUN dismiss. Receive again a HUN from WA from same sender for same chat and reply.

Flag: com.android.systemui.expand_heads_up_on_inline_reply
Change-Id: I232cca6ec8c405fd497608dc10cad2bb0b34708b