chore(NA): add Blob polyfill on jest env (elastic#162197)

This PR adds the `Blob` polyfill into the jest jsdom env which is
currently not supported as mentioned in
jsdom/jsdom#2555

---------

Co-authored-by: Thomas Watson <w@tson.dk>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
(cherry picked from commit e9a6519)

# Conflicts:
#	package.json
#	packages/kbn-test/src/jest/setup/polyfills.jsdom.js
#	yarn.lock

package.json

@@ -669,6 +669,7 @@
     "babel-plugin-styled-components": "^2.0.7",
     "babel-plugin-transform-react-remove-prop-types": "^0.4.24",
     "backport": "^5.6.6",
+    "blob-polyfill": "^7.0.20220408",
     "callsites": "^3.1.0",
     "chai": "3.5.0",
     "chance": "1.0.18",

packages/kbn-test/src/jest/setup/polyfills.jsdom.js

@@ -25,3 +25,10 @@ if (!global.URL.hasOwnProperty('createObjectURL')) {
 // Will be replaced with a better solution in EUI
 // https://github.com/elastic/eui/issues/3713
 global._isJest = true;
+
+// NOTE: We should evaluate removing this once we upgrade to Node 18 and find out if loaders.gl already fixed this usage
+// or instead check if we can use the official Blob implementation.
+// This is needed for x-pack/plugins/file_upload/public/importer/geo/geojson_importer/geojson_importer.test.js
+//
+// https://github.com/jsdom/jsdom/issues/2555
+global.Blob = require('blob-polyfill').Blob;

yarn.lock

@@ -9074,6 +9074,11 @@ bl@^4.0.1, bl@^4.0.3:
     inherits "^2.0.4"
     readable-stream "^3.4.0"
 
+blob-polyfill@^7.0.20220408:
+  version "7.0.20220408"
+  resolved "https://registry.yarnpkg.com/blob-polyfill/-/blob-polyfill-7.0.20220408.tgz#38bf5e046c41a21bb13654d9d19f303233b8218c"
+  integrity sha512-oD8Ydw+5lNoqq+en24iuPt1QixdPpe/nUF8azTHnviCZYu9zUC+TwdzIp5orpblJosNlgNbVmmAb//c6d6ImUQ==
+
 blob-util@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/blob-util/-/blob-util-2.0.2.tgz#3b4e3c281111bb7f11128518006cdc60b403a1eb"