Fix Hierarchy section of KaCompoundVariableAccessCall

According to
https://github.com/JetBrains/kotlin/blob/v2.1.10/analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/resolution/KaCall.kt#L156
and
https://github.com/Kotlin/analysis-api/blob/e28053c53403fa07c426e3e0c18cb3953101dff8/Writerside/topics/KaCall.md?plain=1#L16

instead of `KaCallableMemberCall` it inherits from `KaCall`.

Writerside/topics/KaCompoundVariableAccessCall.md

@@ -6,7 +6,7 @@ like `+=`, `-=`, `++`, or `--`.
 
 ## Hierarchy
 
-Inherits [KaCallableMemberCall](KaCallableMemberCall.md).
+Inherits [KaCall](KaCall.md).
 
 ## Members