chore(deps-dev): bump webpack in /src/packages/excalidraw (#3918)

Bumps [webpack](https://github.com/webpack/webpack) from 5.47.1 to 5.50.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v5.47.1...v5.50.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/packages/excalidraw/package.json

     "terser-webpack-plugin": "5.1.4",
     "ts-loader": "9.2.4",
     "typescript": "4.3.5",
-    "webpack": "5.47.1",
+    "webpack": "5.50.0",
     "webpack-bundle-analyzer": "4.4.2",
     "webpack-cli": "4.7.2"
   },

src/packages/excalidraw/yarn.lock

   resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.2.tgz#d291c6a4e97989b5c61d9acf396ae4fe133a718d"
   integrity sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==
 
+acorn-import-assertions@^1.7.6:
+  version "1.7.6"
+  resolved "https://registry.yarnpkg.com/acorn-import-assertions/-/acorn-import-assertions-1.7.6.tgz#580e3ffcae6770eebeec76c3b9723201e9d01f78"
+  integrity sha512-FlVvVFA1TX6l3lp8VjDnYYq7R1nyW6x3svAt4nDgrWQ9SBaSh9CnbwgSUTasgfNfOG5HlM1ehugCvM+hjo56LA==
+
 acorn-walk@^8.0.0:
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.0.2.tgz#d4632bfc63fd93d0f15fd05ea0e984ffd3f5a8c3"
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack-sources@^3.1.1:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-3.1.2.tgz#614c962ac45dfac7f0f482052db8324a6e0dc274"
-  integrity sha512-//DeuK5SzM6yFRXNOGK+4tX7QB8PghkL8kFBPyqSlN62oJOUkmby8ptV7+IBGH6BkIuIw5Rjd7OvvwZaoiF4ag==
+webpack-sources@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-3.2.0.tgz#b16973bcf844ebcdb3afde32eda1c04d0b90f89d"
+  integrity sha512-fahN08Et7P9trej8xz/Z7eRu8ltyiygEo/hnRi9KqBUs80KeDcnf96ZJo++ewWd84fEf3xSX9bp4ZS9hbw0OBw==
 
-webpack@5.47.1:
-  version "5.47.1"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.47.1.tgz#20fb7d76f68912a2249a6dd7ff16faa178049ad2"
-  integrity sha512-cW+Mzy9SCDapFV4OrkHuP6EFV2mAsiQd+gOa3PKtHNoKg6qPqQXZzBlHH+CnQG1osplBCqwsJZ8CfGO6XWah0g==
+webpack@5.50.0:
+  version "5.50.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-5.50.0.tgz#5562d75902a749eb4d75131f5627eac3a3192527"
+  integrity sha512-hqxI7t/KVygs0WRv/kTgUW8Kl3YC81uyWQSo/7WUs5LsuRw0htH/fCwbVBGCuiX/t4s7qzjXFcf41O8Reiypag==
   dependencies:
     "@types/eslint-scope" "^3.7.0"
     "@types/estree" "^0.0.50"
     "@webassemblyjs/wasm-edit" "1.11.1"
     "@webassemblyjs/wasm-parser" "1.11.1"
     acorn "^8.4.1"
+    acorn-import-assertions "^1.7.6"
     browserslist "^4.14.5"
     chrome-trace-event "^1.0.2"
     enhanced-resolve "^5.8.0"
     tapable "^2.1.1"
     terser-webpack-plugin "^5.1.3"
     watchpack "^2.2.0"
-    webpack-sources "^3.1.1"
+    webpack-sources "^3.2.0"
 
 which@^2.0.1:
   version "2.0.2"