additional pkcs12 test vector (#4554)

diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 083283b..12def6c 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -486,6 +486,9 @@
   (``x509/custom/ca/ca.pem``) encrypted with RC2 and key
   (``x509/custom/ca/ca_key.pem``) encrypted via 3DES with the password
   ``cryptography``.
+* ``no-password.p12`` - A PKCS12 file containing a cert
+  (``x509/custom/ca/ca.pem``) and key (``x509/custom/ca/ca_key.pem``) with no
+  encryption and no password.
 
 Hashes
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