IBX-7603: Added missing subfield for ezurl

[mateuszdebinski]

🎫 Issue	IBX-7603

Description:

If the ibexa.graphql.schema.should.extend.ezurl parameter is false (default), the graphQL query will look like before, i.e.:

{
  content {
    urlCT(contentId:68) {
      urlField
    }
  }
}

but if we set this parameter to true, the graphQL query will look like this:

{
  content {
    urlCT(contentId:68) {
      urlField {
        link,
        text
      }
    }
  }
}

This is port to 4.6 from ezsystems/ezplatform-graphql#137

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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