fix: src/Cofoundry.Web/Cofoundry.Web.csproj to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DOTNET-MICROSOFTIDENTITYMODELJSONWEBTOKENS-6148656
- https://snyk.io/vuln/SNYK-DOTNET-SYSTEMIDENTITYMODELTOKENSJWT-6148655

src/Cofoundry.Web/Cofoundry.Web.csproj

@@ -37,7 +37,7 @@
     <PackageReference Include="HtmlSanitizer" Version="7.1.488" />
 
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.17" />
   </ItemGroup>
 
   <ItemGroup>