Bump JsonSchema.Net from 7.3.4 to 7.4.0

---
updated-dependencies:
- dependency-name: JsonSchema.Net
  dependency-version: 7.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: default
...

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

Author: dependabot[bot]

src/externalsystems/Dim.Library/Dim.Library.csproj

@@ -35,7 +35,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="JsonSchema.Net" Version="7.3.4" />
+    <PackageReference Include="JsonSchema.Net" Version="7.4.0" />
   </ItemGroup>
 
   <ItemGroup>