Update swagger-ui-dist to ^5.20.0 (#1819)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -29,7 +29,7 @@
     "ibm-watson": "^10.0.0",
     "markdownlint-cli": "^0.44.0",
     "retry": "^0.13.1",
-    "swagger-ui-dist": "^5.19.0",
+    "swagger-ui-dist": "^5.20.0",
     "xml2js": "^0.6.2"
   },
   "license": "MIT",