Allow parsing of webmention.io mentions

spec/adamantium/webmention_request_parser_spec.rb

@@ -29,9 +29,38 @@ RSpec.describe Adamantium::WebmentionRequestParser do
     }'
   }
 
+  let(:webmention_io_json) {
+    '{
+        "post": {
+          "type":"entry",
+          "author": {
+              "type":"card",
+              "name":"nitza",
+              "photo":"https://webmention.io/avatar/micro.blog/2aa75068b73fe7777faf37c7933486a6acd5d158fcdf769064c0472ecd55f120.jpg",
+              "url":"https://micro.blog/nitza"
+          },
+          "url":"https://micro.blog/nitza/28127218",
+          "published":"2023-12-20T22:28:40+00:00",
+          "wm-received":"2023-12-20T22:28:42Z",
+          "wm-id":1756646,
+          "wm-source":"https://micro.blog/nitza/28127218",
+          "wm-target":"https://dnitza.com/post/b9d5bfca-4f51-463c-a63c-7b2e1b8a5ad9",
+          "wm-protocol":"webmention",
+          "content":{
+              "html": "<p><a href=\"https://micro.blog/example\">@example</a> hah! I thought the same thing — but this is the most affordable thing that Teenage Engineering makes 😅</p>",
+              "text": "@example hah! I thought the same thing — but this is the most affordable thing that Teenage Engineering makes 😅"
+          },
+          "in-reply-to":"https://dnitza.com/post/b9d5bfca-4f51-463c-a63c-7b2e1b8a5ad9",
+          "wm-property":"in-reply-to",
+          "wm-private":false
+      }
+    }'
+  }
+
   context "reply" do
     it "parses a reply" do
       expect(subject.call(params: JSON.parse(reply_json, symbolize_names: true))).to be_success
+      expect(subject.call(params: JSON.parse(webmention_io_json, symbolize_names: true))).to be_success
     end
 
     it "fails to parses a reply" do