Prepare in-proc branch for VNext: Clear notes, update version to 4.45.100 (#11360)

* Update version to 4.45.100

* Clear release notes

---------

Co-authored-by: azure-functions-release[bot] <223311270+azure-functions-release[bot]@users.noreply.github.com>

Author: azure-functions-release[bot]

release_notes.md

@@ -2,9 +2,4 @@
 
 <!-- Please add your release notes in the following format:
 - My change description (#PR)
--->
-- Add JitTrace files for v4.43 (#11277)
-- Cap v4.x extension bundle versions on .NET 6 to the range (>4.2.0, <4.22.0) by default (#11289)
-- Update `Microsoft.Azure.WebJobs` reference to `3.0.42` (#11310)
-- Don't apply bundle version limits if host is in placeholder mode (#11316)
-- Update PowerShell worker to [4.0.4581](https://github.com/Azure/azure-functions-powershell-worker/releases/tag/v4.0.4581)
+-->

src/Directory.Version.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <VersionPrefix>4.$(MinorVersionPrefix)44.100</VersionPrefix>
+    <VersionPrefix>4.$(MinorVersionPrefix)45.100</VersionPrefix>
     <UpdateBuildNumber>true</UpdateBuildNumber>
   </PropertyGroup>
 </Project>