fix(v2 test): fix test data collection (#2174)

Author: mpro7

webapi/src/test/scala/org/knora/webapi/e2e/v2/ResourcesRouteV2E2ESpec.scala

@@ -1606,7 +1606,7 @@ class ResourcesRouteV2E2ESpec extends E2ESpec(ResourcesRouteV2E2ESpec.config) {
         )
       )
 
-      collectClientTestData("update-resource-metadata-response", jsonLDEntity)
+      collectClientTestData("update-resource-metadata-response", updateResponseAsString)
 
       val previewRequest = Get(
         s"$baseApiUrl/v2/resourcespreview/$aThingIriEncoded"
@@ -1678,7 +1678,7 @@ class ResourcesRouteV2E2ESpec extends E2ESpec(ResourcesRouteV2E2ESpec.config) {
         )
       )
 
-      collectClientTestData("update-resource-metadata-response-with-last-mod-date", jsonLDEntity)
+      collectClientTestData("update-resource-metadata-response-with-last-mod-date", updateResponseAsString)
 
       val previewRequest = Get(
         s"$baseApiUrl/v2/resourcespreview/$aThingIriEncoded"
@@ -1735,7 +1735,7 @@ class ResourcesRouteV2E2ESpec extends E2ESpec(ResourcesRouteV2E2ESpec.config) {
       assert(updateResponse.status == StatusCodes.OK, updateResponseAsString)
       assert(JsonParser(updateResponseAsString) == JsonParser(successResponse("Resource marked as deleted")))
 
-      collectClientTestData("delete-resource-response", jsonLDEntity)
+      collectClientTestData("delete-resource-response", updateResponseAsString)
 
       val previewRequest = Get(
         s"$baseApiUrl/v2/resourcespreview/$aThingIriEncoded"
@@ -1750,7 +1750,7 @@ class ResourcesRouteV2E2ESpec extends E2ESpec(ResourcesRouteV2E2ESpec.config) {
       val responseType = previewJsonLD.requireString("@type")
       responseType should equal(OntologyConstants.KnoraApiV2Complex.DeletedResource)
 
-      collectClientTestData("deleted-resource-preview-response", jsonLDEntity)
+      collectClientTestData("deleted-resource-preview-response", previewResponseAsString)
     }
 
     "mark a resource as deleted, supplying a custom delete date" in {