Upgrade iiif-metadata-component to v1.2.2. (#1471)

Author: demiankatz

package-lock.json

@@ -92,7 +92,7 @@
     "@iiif/base-component": "2.0.1",
     "@iiif/iiif-av-component": "1.2.4",
     "@iiif/iiif-gallery-component": "^1.1.23",
-    "@iiif/iiif-metadata-component": "^1.2.1",
+    "@iiif/iiif-metadata-component": "^1.2.2",
     "@iiif/iiif-tree-component": "^2.0.7",
     "@iiif/manifold": "^2.1.1",
     "@iiif/presentation-3": "^1.0.5",