Add the Ocaml ecosystem (#3112)

Signed-off-by: Laurent Goderre <laurent.goderre@docker.com>

schema/json/schema-latest.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "$id": "anchore.io/schema/syft/json/16.0.15/document",
+  "$id": "anchore.io/schema/syft/json/16.0.16/document",
   "$ref": "#/$defs/Document",
   "$defs": {
     "AlpmDbEntry": {
@@ -1436,6 +1436,50 @@
         "files"
       ]
     },
+    "OpamPackage": {
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "version": {
+          "type": "string"
+        },
+        "licenses": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "url": {
+          "type": "string"
+        },
+        "checksum": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "homepage": {
+          "type": "string"
+        },
+        "dependencies": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "type": "object",
+      "required": [
+        "name",
+        "version",
+        "licenses",
+        "url",
+        "checksum",
+        "homepage",
+        "dependencies"
+      ]
+    },
     "Package": {
       "properties": {
         "id": {
@@ -1563,6 +1607,9 @@
             {
               "$ref": "#/$defs/NixStoreEntry"
             },
+            {
+              "$ref": "#/$defs/OpamPackage"
+            },
             {
               "$ref": "#/$defs/PhpComposerInstalledEntry"
             },