Fix source-map-support bug

See evanw/node-source-map-support#254.

Author: danielbayley

package.json

@@ -29,7 +29,8 @@
   },
   "dependencies": {
     "@babel/plugin-transform-modules-commonjs": "^7.10.4",
-    "babel-preset-jest": "^26.5.0"
+    "babel-preset-jest": "^26.5.0",
+    "source-map-support": "danielbayley/node-source-map-support#patch-1"
   },
   "peerDependencies": {
     "coffeescript": "2.x",