[CORL-735] Scraper support for JSON Linked Data (#2671)

* feat: add support for application/json+ld parsing

- upgraded scraper packages to use new jsonld parser
- waiting on https://github.com/microlinkhq/metascraper/pull/225
  for merging
- fixes #2670

* chore: metascraper upgrades

src/core/server/services/stories/scraper/rules/helpers.ts

@@ -0,0 +1,4 @@
+import { Rule, Ruler } from "metascraper";
+
+export const wrap = (rule: Rule): Ruler => ({ htmlDom, url }) =>
+  rule(htmlDom, url);

src/core/server/services/stories/scraper/rules/modified.ts

@@ -1,8 +1,12 @@
+import { $jsonld } from "@metascraper/helpers";
 import { Rules } from "metascraper";
 
+import { wrap } from "./helpers";
+
 export const modifiedScraper = (): Rules => ({
   modified: [
     // From: http://ogp.me/#type_article
-    ({ htmlDom: $ }) => $('meta[property="article:modified"]').attr("content"),
+    wrap($jsonld("dateModified")),
+    wrap($ => $('meta[property="article:modified"]').attr("content")),
   ],
 });

src/core/server/services/stories/scraper/rules/section.ts

@@ -1,8 +1,12 @@
+import { $jsonld } from "@metascraper/helpers";
 import { Rules } from "metascraper";
 
+import { wrap } from "./helpers";
+
 export const sectionScraper = (): Rules => ({
   section: [
     // From: http://ogp.me/#type_article
-    ({ htmlDom: $ }) => $('meta[property="article:section"]').attr("content"),
+    wrap($jsonld("articleSection")),
+    wrap($ => $('meta[property="article:section"]').attr("content")),
   ],
 });