Auto merge of #3974 - rust-lang:renovate/webpack-5.x, r=hi-rustin

Update dependency webpack to v5.56.0

[![WhiteSource Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [webpack](https://togithub.com/webpack/webpack) | [`5.54.0` -> `5.56.0`](https://renovatebot.com/diffs/npm/webpack/5.54.0/5.56.0) | [![age](https://badges.renovateapi.com/packages/npm/webpack/5.56.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/npm/webpack/5.56.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/npm/webpack/5.56.0/compatibility-slim/5.54.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/npm/webpack/5.56.0/confidence-slim/5.54.0)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>webpack/webpack</summary>

### [`v5.56.0`](https://togithub.com/webpack/webpack/releases/v5.56.0)

[Compare Source](https://togithub.com/webpack/webpack/compare/v5.55.1...v5.56.0)

### Performance

-   make DefinePlugin rebuild check more efficient performance and memory wise

### [`v5.55.1`](https://togithub.com/webpack/webpack/releases/v5.55.1)

[Compare Source](https://togithub.com/webpack/webpack/compare/v5.55.0...v5.55.1)

### Bugfixes

-   fixes for `experiments.cacheUnaffected`
    -   fix accidentically shared mem caches
    -   avoid RuntimeSpecMap in favor of directly setting on memCache
    -   compare references modules when restoring mem cache

### [`v5.55.0`](https://togithub.com/webpack/webpack/releases/v5.55.0)

[Compare Source](https://togithub.com/webpack/webpack/compare/v5.54.0...v5.55.0)

### Performance

-   `experiments.cacheUnaffected`
    -   reduce cache memory usage
    -   make memCache per module
    -   cache ESM reexport computation
-   `module.unsafeCache`
    -   make it faster by moving it to Compilation-level instead of in NormalModuleFactory
    -   omit tracking resolve dependencies since they are not used when unsafe cache is enabled
-   module graph
    -   lazy assign ModuleGraphConnections to Dependencies since that is only accessed when uncached

</details>

---

### Configuration

📅 **Schedule**: "before 3am on Monday" (UTC).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box.

---

This PR has been generated by [WhiteSource Renovate](https://renovate.whitesourcesoftware.com). View repository job log [here](https://app.renovatebot.com/dashboard#github/rust-lang/crates.io).

Author: bors

package.json

@@ -124,7 +124,7 @@
     "qunit-console-grouper": "0.3.0",
     "qunit-dom": "2.0.0",
     "timekeeper": "2.2.0",
-    "webpack": "5.54.0"
+    "webpack": "5.56.0"
   },
   "resolutions": {
     "ember-css-modules/postcss": "8.3.8",

yarn.lock

@@ -14606,10 +14606,10 @@ webpack-sources@^3.2.0:
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-3.2.1.tgz#251a7d9720d75ada1469ca07dbb62f3641a05b6d"
   integrity sha512-t6BMVLQ0AkjBOoRTZgqrWm7xbXMBzD+XDq2EZ96+vMfn3qKgsvdXZhbPZ4ElUOpdv4u+iiGe+w3+J75iy/bYGA==
 
-webpack@5.54.0:
-  version "5.54.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.54.0.tgz#629f0cd14c7a4340af758a3c7cef25c50670ae4d"
-  integrity sha512-MAVKJMsIUotOQKzFOmN8ZkmMlj7BOyjDU6t1lomW9dWOme5WTStzGa3HMLdV1KYD1AiFETGsznL4LMSvj4tukw==
+webpack@5.56.0:
+  version "5.56.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.56.0.tgz#91a04de09c85765002818678538c319b6e461324"
+  integrity sha512-pJ7esw2AGkpZL0jqsEAKnDEfRZdrc9NVjAWA+d1mFkwj68ng9VQ6+Wnrl+kS5dlDHvrat5ASK5vd7wp6I7f53Q==
   dependencies:
     "@types/eslint-scope" "^3.7.0"
     "@types/estree" "^0.0.50"