Bump Microsoft.IdentityModel.Tokens.Saml from 5.7.1 to 8.19.2

---
updated-dependencies:
- dependency-name: Microsoft.IdentityModel.Tokens.Saml
  dependency-version: 8.19.2
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: Microsoft.IdentityModel.Tokens.Saml
  dependency-version: 8.19.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/Microsoft.Identity.Web.OWIN/Microsoft.Identity.Web.OWIN.csproj

@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <IdentityModelV5Version Condition="'$(IdentityModelV5Version)' == ''">5.7.1</IdentityModelV5Version>
+    <IdentityModelV5Version Condition="'$(IdentityModelV5Version)' == ''">8.19.2</IdentityModelV5Version>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(IdentityModelV5Version)' == '5.7.1'">