Merge pull request #26751 from element-hq/renovate/postcss-easings-4.x

Update dependency postcss-easings to v4

package.json

@@ -176,7 +176,7 @@
         "modernizr": "^3.12.0",
         "node-fetch": "^2.6.7",
         "postcss": "8.4.33",
-        "postcss-easings": "^2.0.0",
+        "postcss-easings": "^4.0.0",
         "postcss-hexrgba": "2.0.1",
         "postcss-import": "16.0.0",
         "postcss-loader": "8.1.0",