fix: drop malformed watson.searchentry rows left by bad merge

The merge of dev into this branch (2f8f682) collided on the watson
search-entry rows: dev removed stub_finding entries while this branch
removed cred_user entries, and the three-way merge dropped only the
model name from each conflicting row, leaving six entries per fixture
with content_type set to ['dojo'] (a one-element natural key).

loaddata then failed with:

    ContentTypeManager.get_by_natural_key() missing 1 required
    positional argument: 'model' ... (watson.searchentry:pk=4)
    field_value was '['dojo']'

These rows pointed at the now-removed cred_user content type and were
already supposed to be deleted (see 12d749f). Remove them from both
fixture files.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Maffooch

dojo/fixtures/defect_dojo_sample_data.json

@@ -43163,57 +43163,6 @@
     "model": "watson.searchentry",
     "pk": 3
   },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "3",
-      "object_id_int": 3,
-      "title": "Web Scan (Feb 23, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 4
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "13",
-      "object_id_int": 13,
-      "title": "Web Scan (Mar 26, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 5
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "14",
-      "object_id_int": 14,
-      "title": "Web Scan (Feb 23, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 6
-  },
   {
     "fields": {
       "content": "",
@@ -43466,57 +43415,6 @@
     "model": "watson.searchentry",
     "pk": 25
   },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "3",
-      "object_id_int": 3,
-      "title": "Web Scan (Feb 23, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 26
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "13",
-      "object_id_int": 13,
-      "title": "Web Scan (Mar 26, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 27
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "14",
-      "object_id_int": 14,
-      "title": "Web Scan (Feb 23, 2022)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 28
-  },
   {
     "fields": {
       "content": "April Monthly Engagement Requested by the team for regular manual checkup by the security team. None None None  Completed threat_model none none Interactive None None None None",

dojo/fixtures/defect_dojo_sample_data_locations.json

@@ -78976,57 +78976,6 @@
     "model": "watson.searchentry",
     "pk": 3
   },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "3",
-      "object_id_int": 3,
-      "title": "Web Scan (Mar 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 4
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "13",
-      "object_id_int": 13,
-      "title": "Web Scan (Apr 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 5
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "14",
-      "object_id_int": 14,
-      "title": "Web Scan (Mar 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 6
-  },
   {
     "fields": {
       "content": "",
@@ -79279,57 +79228,6 @@
     "model": "watson.searchentry",
     "pk": 25
   },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "3",
-      "object_id_int": 3,
-      "title": "Web Scan (Mar 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 26
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "13",
-      "object_id_int": 13,
-      "title": "Web Scan (Apr 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 27
-  },
-  {
-    "fields": {
-      "content": "",
-      "content_type": [
-        "dojo"
-      ],
-      "description": "",
-      "engine_slug": "default",
-      "meta_encoded": "{}",
-      "object_id": "14",
-      "object_id_int": 14,
-      "title": "Web Scan (Mar 21, 2021)",
-      "url": ""
-    },
-    "model": "watson.searchentry",
-    "pk": 28
-  },
   {
     "fields": {
       "content": "April Monthly Engagement Requested by the team for regular manual checkup by the security team. None None None  Completed threat_model none none Interactive None None None None",