Modify constraints for the name and uid attributes of extension object (ocsf#1511)

#### Related Issue:

ocsf#1510 

#### Description of changes:

Derive constraints for `name` & `uid` attributes from the `_entity`
object.

---------

Signed-off-by: s-Fl <74200804+s-Fl@users.noreply.github.com>
Signed-off-by: Rajas <89877409+floydtree@users.noreply.github.com>
Co-authored-by: Rajas <89877409+floydtree@users.noreply.github.com>

Author: s-Fl

CHANGELOG.md

@@ -68,6 +68,7 @@ Thankyou! -->
   1. Added `reporter` to the `metadata` object. [#1476](https://github.com/ocsf/ocsf-schema/pull/1476)
   1. Added `event_uid` and `type_uid` to the `observable` object. [#1503](https://github.com/ocsf/ocsf-schema/pull/1503)
   1. Relaxed the `file` attribute requirement to `optional` in the `job` object. [#1509](https://github.com/ocsf/ocsf-schema/pull/1509)
+  1. Relaxed the `name` and `uid` requirement to `recommended` with `at_least_one` constraint in the `extension` object. [#1511](https://github.com/ocsf/ocsf-schema/pull/1511)
 * #### Observables
 * #### Platform Extensions
 * #### Dictionary Attributes

objects/extension.json

@@ -5,17 +5,14 @@
   "name": "extension",
   "attributes": {
     "name": {
-      "description": "The schema extension name. For example: <code>dev</code>.",
-      "requirement": "required"
+      "description": "The schema extension name. For example: <code>dev</code>."
     },
     "uid": {
-      "description": "The schema extension unique identifier. For example: <code>999</code>.",
-      "requirement": "required"
+      "description": "The schema extension unique identifier. For example: <code>999</code>."
     },
     "version": {
       "description": "The schema extension version. For example: <code>1.0.0-alpha.2</code>.",
       "requirement": "required"
     }
-  },
-  "constraints": {}
-}
+  }
+}