add: [describeTypes] New attribute type `onion-address`

- Follows recent add on MISP

pymisp/data/describeTypes.json

@@ -573,6 +573,10 @@
                 "default_category": "Network activity",
                 "to_ids": 1
             },
+            "onion-address": {
+                "default_category": "Network activity",
+                "to_ids": 1
+            },
             "mac-address": {
                 "default_category": "Network activity",
                 "to_ids": 0
@@ -906,6 +910,7 @@
             "ip-dst|port",
             "ip-src|port",
             "hostname|port",
+            "onion-address",
             "mac-address",
             "mac-eui-64",
             "email-dst-display-name",
@@ -1098,7 +1103,8 @@
                 "mobile-application-id",
                 "chrome-extension-id",
                 "whois-registrant-email",
-                "anonymised"
+                "anonymised",
+                "onion-address"
             ],
             "Artifacts dropped": [
                 "md5",
@@ -1299,7 +1305,8 @@
                 "dkim",
                 "dkim-signature",
                 "ssh-fingerprint",
-                "dom-hash"
+                "dom-hash",
+                "onion-address"
             ],
             "Payload type": [
                 "comment",
@@ -1384,7 +1391,8 @@
                 "cortex",
                 "anonymised",
                 "community-id",
-                "dom-hash"
+                "dom-hash",
+                "onion-address"
             ],
             "Financial fraud": [
                 "btc",