Update devDependencies and gems. (#27981)

Gemfile.lock

@@ -10,8 +10,8 @@ GEM
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
-    ffi (1.9.25)
-    ffi (1.9.25-x64-mingw32)
+    ffi (1.10.0)
+    ffi (1.10.0-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
@@ -47,9 +47,9 @@ GEM
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
     mini_portile2 (2.4.0)
-    nokogiri (1.9.1)
+    nokogiri (1.10.0)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.9.1-x64-mingw32)
+    nokogiri (1.10.0-x64-mingw32)
       mini_portile2 (~> 2.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
@@ -60,7 +60,7 @@ GEM
     rouge (3.3.0)
     ruby_dep (1.5.0)
     safe_yaml (1.0.4)
-    sass (3.7.2)
+    sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)

package.json

@@ -114,15 +114,15 @@
     "clean-css-cli": "^4.2.1",
     "coveralls": "^3.0.2",
     "cross-env": "^5.2.0",
-    "eslint": "^5.11.1",
-    "find-unused-sass-variables": "^0.3.1",
+    "eslint": "^5.12.0",
+    "find-unused-sass-variables": "^0.3.2",
     "glob": "^7.1.3",
     "hammer-simulator": "0.0.1",
     "http-server": "^0.11.1",
     "ip": "^1.1.5",
     "jquery": "^3.3.1",
     "karma": "^3.1.4",
-    "karma-browserstack-launcher": "^1.3.0",
+    "karma-browserstack-launcher": "^1.4.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-coverage-istanbul-reporter": "^2.0.4",
     "karma-detect-browsers": "^2.3.3",
@@ -134,8 +134,8 @@
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.14.6",
     "postcss-cli": "^6.1.1",
-    "qunit": "^2.8.0",
-    "rollup": "^1.0.1",
+    "qunit": "^2.9.1",
+    "rollup": "^1.0.2",
     "rollup-plugin-babel": "^4.2.0",
     "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-node-resolve": "^4.0.0",