docs: add link to the PR

Author: nicolastemciuc

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Added
 
-- Updated `tpm-key_attestation` dependency from `~> 1.12.0` to `~> 1.14.0`. [@brauliomartinezlm], [@nicolastemciuc]
+- Updated `tpm-key_attestation` dependency from `~> 1.12.0` to `~> 1.14.0`. [#449](https://github.com/cedarcode/webauthn-ruby/pull/449) [@brauliomartinezlm], [@nicolastemciuc]
 
 ## [v3.2.2] - 2024-11-14