chore(deps): bump redux-immutable from 3.1.0 to 4.0.0

Bumps [redux-immutable](https://github.com/gajus/redux-immutable) from 3.1.0 to 4.0.0.
- [Release notes](https://github.com/gajus/redux-immutable/releases)
- [Commits](gajus/redux-immutable@v3.1.0...v4.0.0)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -86,7 +86,7 @@
     "react-redux": "=4.4.10",
     "react-syntax-highlighter": "^15.4.3",
     "redux": "=3.7.2",
-    "redux-immutable": "3.1.0",
+    "redux-immutable": "4.0.0",
     "remarkable": "^2.0.1",
     "reselect": "^4.0.0",
     "serialize-error": "^2.1.0",
@@ -97,7 +97,7 @@
     "zenscroll": "^4.0.2"
   },
   "devDependencies": {
-    "@babel/cli": "=7.13.0",
+    "@babel/cli": "=7.13.10",
     "@babel/core": "=7.13.10",
     "@babel/eslint-parser": "=7.13.10",
     "@babel/plugin-proposal-class-properties": "=7.13.0",
@@ -120,7 +120,7 @@
     "chromedriver": "^87.0.7",
     "cors": "^2.8.5",
     "cross-env": "=7.0.3",
-    "css-loader": "=5.1.1",
+    "css-loader": "=5.1.3",
     "cssnano": "=4.1.10",
     "cypress": "^6.7.1",
     "dedent": "^0.7.0",
@@ -156,7 +156,7 @@
     "npm-run-all": "^4.1.5",
     "oauth2-server": "^2.4.1",
     "open": "^8.0.2",
-    "postcss": "=8.2.7",
+    "postcss": "=8.2.8",
     "postcss-loader": "=4.2.0",
     "postcss-preset-env": "=6.7.0",
     "prettier": "^2.0.0",