Bump actions/github to 2.2.0 to support GHES (#72)

* Bumping actions/github to 2.2.0

* Husky commit correct node modules

node_modules/ts-jest/dist/util/sha1.js

@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var crypto_1 = require("crypto");
+exports.cache = Object.create(null);
+function sha1() {
+    var data = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+        data[_i] = arguments[_i];
+    }
+    var canCache = data.length === 1 && typeof data[0] === 'string';
+    var cacheKey;
+    if (canCache) {
+        cacheKey = data[0];
+        if (cacheKey in exports.cache) {
+            return exports.cache[cacheKey];
+        }
+    }
+    var hash = crypto_1.createHash('sha1');
+    data.forEach(function (item) {
+        if (typeof item === 'string')
+            hash.update(item, 'utf8');
+        else
+            hash.update(item);
+    });
+    var res = hash.digest('hex').toString();
+    if (canCache) {
+        exports.cache[cacheKey] = res;
+    }
+    return res;
+}
+exports.sha1 = sha1;