SQL Dependency has wrong parrentId #778

Repro Steps

1. AddApplicationInsightsTelemetry to youe service
2. Add call to some API, SQL Server

Actual Behavior

Requests logged correctly, API call is child,
SQL Server call is NOT a child of root request. It is on the same level with request

Expected Behavior

SQL Server dependency should have request as parrent

NOTE: workaround is to store RequestId in Activity when request starts, and set parrentId in sql dependency in custom telemetryProccessor

Version Info

SDK Version : Microsoft.ApplicationInsights.AspNetCore Version=2.3.0 - 2.5.1
.NET Version : netcoreapp2.1