fix(deps): update dependency mini-css-extract-plugin to v1.6.0 (#31158)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

packages/gatsby-plugin-netlify-cms/package.json

@@ -12,7 +12,7 @@
     "html-webpack-plugin": "^5.3.1",
     "html-webpack-tags-plugin": "^3.0.1",
     "lodash": "^4.17.21",
-    "mini-css-extract-plugin": "1.5.1",
+    "mini-css-extract-plugin": "1.6.0",
     "netlify-identity-widget": "^1.9.1",
     "webpack": "^5.23.0"
   },

packages/gatsby/package.json

@@ -108,7 +108,7 @@
     "memoizee": "^0.4.15",
     "micromatch": "^4.0.2",
     "mime": "^2.4.6",
-    "mini-css-extract-plugin": "1.5.1",
+    "mini-css-extract-plugin": "1.6.0",
     "mitt": "^1.2.0",
     "mkdirp": "^0.5.1",
     "moment": "^2.27.0",

yarn.lock

@@ -18678,10 +18678,10 @@ min-indent@^1.0.0:
   resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.1.tgz#a63f681673b30571fbe8bc25686ae746eefa9869"
   integrity sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==
 
-mini-css-extract-plugin@1.5.1:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.5.1.tgz#c0ac557c48a7de47de3df0768fe037c9cf961f69"
-  integrity sha512-wEpr0XooH6rw/Mlf+9KTJoMBLT3HujzdTrmohPjAzF47N4Q6yAeczQLpRD/WxvAtXvskcXbily7TAdCfi2M4Dg==
+mini-css-extract-plugin@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.6.0.tgz#b4db2525af2624899ed64a23b0016e0036411893"
+  integrity sha512-nPFKI7NSy6uONUo9yn2hIfb9vyYvkFu95qki0e21DQ9uaqNKDP15DGpK0KnV6wDroWxPHtExrdEwx/yDQ8nVRw==
   dependencies:
     loader-utils "^2.0.0"
     schema-utils "^3.0.0"