chore: bump System.Net.Http from 4.0.0 to 4.3.4 in /ExampleNet45ASPNetProject/SendGrid.ASPSamples (#1105)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

ExampleNet45ASPNetProject/SendGrid.ASPSamples/packages.config

@@ -37,6 +37,6 @@
   <package id="Owin" version="1.0" targetFramework="net452" />
   <package id="Respond" version="1.2.0" targetFramework="net452" />
   <package id="Sendgrid" version="9" targetFramework="net452" />
-  <package id="System.Net.Http" version="4.0.0" targetFramework="net452" />
+  <package id="System.Net.Http" version="4.3.4" targetFramework="net452" />
   <package id="WebGrease" version="1.5.2" targetFramework="net452" />
 </packages>