chore(deps): Bump dompurify in /build/frontend-legacy

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 3.3.3 to 3.4.0.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/3.3.3...3.4.0)

---
updated-dependencies:
- dependency-name: dompurify
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build/frontend-legacy/package-lock.json

@@ -46,7 +46,7 @@
         "crypto-browserify": "^3.12.1",
         "davclient.js": "nextcloud-deps/davclient.js#59d7777d7fe290c5f1fd74a58e7eb529b63e153d",
         "debounce": "^3.0.0",
-        "dompurify": "^3.3.3",
+        "dompurify": "^3.4.0",
         "escape-html": "^1.0.3",
         "focus-trap": "^7.8.0",
         "handlebars": "^4.7.9",
@@ -8867,9 +8867,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.3.tgz",
-      "integrity": "sha512-Oj6pzI2+RqBfFG+qOaOLbFXLQ90ARpcGG6UePL82bJLtdsa6CYJD7nmiU8MW9nQNOtCHV3lZ/Bzq1X0QYbBZCA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.0.tgz",
+      "integrity": "sha512-nolgK9JcaUXMSmW+j1yaSvaEaoXYHwWyGJlkoCTghc97KgGDDSnpoU/PlEnw63Ah+TGKFOyY+X5LnxaWbCSfXg==",
       "license": "(MPL-2.0 OR Apache-2.0)",
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"

build/frontend-legacy/package.json

@@ -62,7 +62,7 @@
     "crypto-browserify": "^3.12.1",
     "davclient.js": "nextcloud-deps/davclient.js#59d7777d7fe290c5f1fd74a58e7eb529b63e153d",
     "debounce": "^3.0.0",
-    "dompurify": "^3.3.3",
+    "dompurify": "^3.4.0",
     "escape-html": "^1.0.3",
     "focus-trap": "^7.8.0",
     "handlebars": "^4.7.9",