feat: change to source xlsx from git

Author: matthewhartstonge

package.json

@@ -39,7 +39,7 @@
     "ember-cli-babel": "^8.2.0",
     "ember-cli-htmlbars": "^6.3.0",
     "file-saver": "^2.0.5",
-    "xlsx": "https://cdn.sheetjs.com/xlsx-0.20.3/xlsx-0.20.3.tgz"
+    "xlsx": "https://git.sheetjs.com/sheetjs/sheetjs.git#^0.20.3"
   },
   "devDependencies": {
     "@babel/eslint-parser": "^7.25.1",

yarn.lock

@@ -10161,6 +10161,10 @@ xdg-basedir@^4.0.0:
   version "0.20.3"
   resolved "https://cdn.sheetjs.com/xlsx-0.20.3/xlsx-0.20.3.tgz#992725af0bb69fa9733590fcb8ab4a57e10b929b"
 
+"xlsx@https://git.sheetjs.com/sheetjs/sheetjs.git#^0.20.3":
+  version "0.20.3"
+  resolved "https://git.sheetjs.com/sheetjs/sheetjs.git#8a7cfd47bde8258c0d91df6a737bf0136699cdf8"
+
 y18n@^5.0.5:
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"