Update dependency webpack to v5.76.0 (#64605)

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

packages/grafana-e2e/package.json

@@ -57,7 +57,7 @@
     "rollup-plugin-dts": "^5.0.0",
     "rollup-plugin-esbuild": "5.0.0",
     "rollup-plugin-node-externals": "^5.0.0",
-    "webpack": "5.75.0"
+    "webpack": "5.76.0"
   },
   "dependencies": {
     "@babel/core": "7.20.5",

packages/grafana-ui/package.json

@@ -186,7 +186,7 @@
     "storybook-dark-mode": "2.1.1",
     "style-loader": "3.3.1",
     "typescript": "4.8.4",
-    "webpack": "5.75.0"
+    "webpack": "5.76.0"
   },
   "peerDependencies": {
     "react": "^16.8.0 || ^17.0.0",