pkg: Update @anansi/webpack-config to v20 (#3186)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/benchmark/package.json

@@ -25,7 +25,7 @@
     "react": "^18.2.0"
   },
   "devDependencies": {
-    "@anansi/webpack-config": "^19.0.0",
+    "@anansi/webpack-config": "^20.0.0",
     "@babel/core": "7.25.2",
     "@babel/node": "7.25.0",
     "@types/babel__core": "^7",

examples/coin-app/package.json

@@ -23,7 +23,7 @@
   "devDependencies": {
     "@anansi/babel-preset": "^6.0.0",
     "@anansi/browserslist-config": "^1.4.3",
-    "@anansi/webpack-config": "^19.0.0",
+    "@anansi/webpack-config": "^20.0.0",
     "@babel/core": "^7.22.15",
     "@linaria/babel-preset": "*",
     "@linaria/core": "*",