Bump @xmldom/xmldom from 0.8.11 to 0.8.12 in /Extension (#14340)

Bumps [@xmldom/xmldom](https://github.com/xmldom/xmldom) from 0.8.11 to 0.8.12.
- [Release notes](https://github.com/xmldom/xmldom/releases)
- [Changelog](https://github.com/xmldom/xmldom/blob/master/CHANGELOG.md)
- [Commits](xmldom/xmldom@0.8.11...0.8.12)

---
updated-dependencies:
- dependency-name: "@xmldom/xmldom"
  dependency-version: 0.8.12
  dependency-type: indirect
...

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

Author: dependabot[bot]

Extension/yarn.lock

@@ -1310,9 +1310,9 @@
   integrity sha1-Ml20I5XNSf5sFAV/mpAOQn34gQ4=
 
 "@xmldom/xmldom@^0.8.8":
-  version "0.8.11"
-  resolved "https://pkgs.dev.azure.com/azure-public/VisualCpp/_packaging/cpp_PublicPackages/npm/registry/@xmldom/xmldom/-/xmldom-0.8.11.tgz#b79de2d67389734c57c52595f7a7305e30c2d608"
-  integrity sha1-t53i1nOJc0xXxSWV96cwXjDC1gg=
+  version "0.8.12"
+  resolved "https://pkgs.dev.azure.com/azure-public/VisualCpp/_packaging/cpp_PublicPackages/npm/registry/@xmldom/xmldom/-/xmldom-0.8.12.tgz#cf488a5435fa06c7374ad1449c69cea0f823624b"
+  integrity sha1-z0iKVDX6Bsc3StFEnGnOoPgjYks=
 
 "@xtuc/ieee754@^1.2.0":
   version "1.2.0"