fix(register): move the schema KEY with the slug, this register keys by slug

Measured on the descriptor: key equals slug for every other schema here.
Renaming only the slug made this one the single exception, and a reference
that names a schema by bare string then has no way to stay right.

The key is anchored to the schema-entry indent, so a nested property with
the same name cannot be caught by it: dossiq has four `location`
PROPERTIES, and an unanchored rename reshaped all four.

Author: Conduction Release Bot

lib/Settings/softwarecatalogus_register.json

@@ -890,7 +890,7 @@
               "magicMapping": true,
               "autoCreateTable": true
             },
-            "assessment": {
+            "software-review": {
               "magicMapping": true,
               "autoCreateTable": true
             },
@@ -3941,7 +3941,7 @@
           }
         }
       },
-      "assessment": {
+      "software-review": {
         "uri": null,
         "slug": "software-review",
         "x-openregister-notifications": {

lib/Settings/stackiq_mock_register.json

@@ -27,7 +27,7 @@
       }
     },
     "schemas": {
-      "assessment": {
+      "software-review": {
         "properties": {
           "auteur": {
             "type": "string",