Swift: Add UIKit to supported-frameworks.rst as well.

Author: geoffw0

docs/codeql/reusables/supported-frameworks.rst

@@ -310,3 +310,4 @@ and the CodeQL library pack ``codeql/swift-all`` (`changelog <https://github.com
    `SQLite3 <https://sqlite.org/index.html>`__, Database
    `SQLite.swift <https://github.com/stephencelis/SQLite.swift>`__, Database
    `WebKit <https://developer.apple.com/documentation/webkit>`__, User interface library
+   `UIKit <https://developer.apple.com/documentation/uikit>`__, User interface library