deps: update assorted dependencies

package.json

@@ -10,22 +10,22 @@
     "type-check": "tsc --allowJs --checkJs --noEmit --target es2016 *.js"
   },
   "devDependencies": {
-    "@types/mkdirp": "^0.3.29",
-    "@types/mocha": "^5.2.7",
-    "@types/rimraf": "^0.0.28",
-    "@types/sinon": "^2.3.1",
+    "@types/mkdirp": "^1.0.0",
+    "@types/mocha": "^7.0.2",
+    "@types/rimraf": "^2.0.3",
+    "@types/sinon": "^7.5.2",
     "clang-format": "^1.0.50",
-    "mocha": "^6.1.4",
-    "sinon": "^2.3.5",
+    "mocha": "^7.1.1",
+    "sinon": "^9.0.1",
     "ts-node": "8.3.0",
     "typescript": "3.2.2"
   },
   "dependencies": {
     "@types/node": "*",
     "is-wsl": "^2.1.0",
     "lighthouse-logger": "^1.0.0",
-    "mkdirp": "0.5.1",
-    "rimraf": "^2.6.1"
+    "mkdirp": "^1.0.3",
+    "rimraf": "^3.0.2"
   },
   "version": "0.13.0",
   "types": "./dist/index.d.ts",

test/chrome-launcher-test.ts

@@ -23,7 +23,7 @@ const launchChromeWithOpts = async (opts: Options = {}) => {
 
   const chromeInstance =
       new Launcher(opts, {fs: fsMock as any, rimraf: spy() as any, spawn: spawnStub as any});
-  stub(chromeInstance, 'waitUntilReady').returns(Promise.resolve());
+  stub(chromeInstance, 'waitUntilReady').returns(Promise.resolve({}));
 
   chromeInstance.prepare();