fix(package): updated postcss

Author: AnthonyNahas

package-lock.json

@@ -102,11 +102,11 @@
     "lodash": "^4.17.11",
     "ngx-combination-generator": "^2.0.0",
     "node-sass": "^4.12.0",
-    "postcss": "^7.0.9",
+    "postcss": "^7.0.15",
     "postcss-strip-inline-comments": "0.1.5",
     "pump": "3.0.0",
     "raw-loader": "^1.0.0",
-    "rollup": "^1.10.1",
+    "rollup": "^1.11.2",
     "rollup-plugin-commonjs": "^9.2.2",
     "rollup-plugin-node-resolve": "^4.2.3",
     "rollup-plugin-sourcemaps": "0.4.2",