fix: package.json & yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DOMPURIFY-15810938

Author: snyk-bot

package.json

@@ -19,7 +19,7 @@
     "@x-govuk/marked-govspeak": "^0.2.0",
     "accessible-autocomplete": "^2.0.4",
     "chai-dom": "^1.11.0",
-    "dompurify": "^3.2.4",
+    "dompurify": "^3.3.2",
     "govuk-frontend": "4.8.0",
     "govuk-markdown": "^0.3.0",
     "jquery": "^3.6.4",

yarn.lock

@@ -2555,10 +2555,10 @@ domhandler@^5.0.1, domhandler@^5.0.2:
   dependencies:
     domelementtype "^2.3.0"
 
-dompurify@^3.2.4:
-  version "3.2.4"
-  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-3.2.4.tgz#af5a5a11407524431456cf18836c55d13441cd8e"
-  integrity sha512-ysFSFEDVduQpyhzAob/kkuJjf5zWkZD8/A9ywSp1byueyuCfHamrCBa14/Oc2iiB0e51B+NpxSl5gmzn+Ms/mg==
+dompurify@^3.3.2:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/dompurify/-/dompurify-3.3.3.tgz#680cae8af3e61320ddf3666a3bc843f7b291b2b6"
+  integrity sha512-Oj6pzI2+RqBfFG+qOaOLbFXLQ90ARpcGG6UePL82bJLtdsa6CYJD7nmiU8MW9nQNOtCHV3lZ/Bzq1X0QYbBZCA==
   optionalDependencies:
     "@types/trusted-types" "^2.0.7"