Bump jsonld dep, clear caches.

Author: dmitrizagidulin

package.json

@@ -15,7 +15,7 @@
   ],
   "dependencies": {
     "@digitalbazaar/security-context": "^1.0.0",
-    "@digitalcredentials/jsonld": "^5.2.1",
+    "@digitalcredentials/jsonld": "^6.0.0",
     "fast-text-encoding": "^1.0.3",
     "isomorphic-webcrypto": "^2.3.8",
     "serialize-error": "^8.0.1"