Bump Prism.Core from 8.1.97 to 9.0.537 in /src

Bumps [Prism.Core](https://github.com/PrismLibrary/Prism) from 8.1.97 to 9.0.537.
- [Release notes](https://github.com/PrismLibrary/Prism/releases)
- [Commits](PrismLibrary/Prism@v8.1.97...9.0.537)

---
updated-dependencies:
- dependency-name: Prism.Core
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Examples/WpfFdc3/WpfFdc3.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Prism.Core" Version="8.1.97" />
+    <PackageReference Include="Prism.Core" Version="9.0.537" />
   </ItemGroup>
 
   <ItemGroup>