Update M.IM 7.5.0 (#2726)

Author: jennyf19

Directory.Build.props

@@ -76,7 +76,7 @@
   </PropertyGroup>
 
   <PropertyGroup Label="Common dependency versions">
-    <IdentityModelVersion>7.4.0</IdentityModelVersion>
+    <IdentityModelVersion>7.5.0</IdentityModelVersion>
     <MicrosoftIdentityClientVersion>4.59.0</MicrosoftIdentityClientVersion>
     <FxCopAnalyzersVersion>3.3.0</FxCopAnalyzersVersion>
     <SystemTextEncodingsWebVersion>4.7.2</SystemTextEncodingsWebVersion>