build(deps): bump dompurify from 3.1.5 to 3.1.7

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 3.1.5 to 3.1.7.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](cure53/DOMPurify@3.1.5...3.1.7)

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

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

Author: dependabot[bot]

package-lock.json

@@ -71,7 +71,7 @@
     "core-js": "^3.37.1",
     "davclient.js": "github:owncloud/davclient.js.git#0.2.2",
     "debounce": "^2.1.0",
-    "dompurify": "^3.0.11",
+    "dompurify": "^3.1.7",
     "escape-html": "^1.0.3",
     "focus-trap": "^7.5.4",
     "handlebars": "^4.7.7",