fix npm install broken: update karma-base64 to ^0.1.0

package.json

@@ -99,7 +99,7 @@
     "jsdom": "^16.2.2",
     "jspdf-yworks": "^2.1.1",
     "karma": "^5.0.8",
-    "karma-base64-to-js-preprocessor": "^0.0.1",
+    "karma-base64-to-js-preprocessor": "^0.1.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-firefox-launcher": "^1.0.0",