Add a new test certificate for *.example.org as wildcard.pem

net/data/ssl/certificates/README

 This directory contains various certificates for use with SSL-related
 unit tests.
 
 ===== Real-world certificates that need manual updating
 - google.binary.p7b
 - google.chain.pem
 - google.pem_cert.p7b
 - google.pem_pkcs7.p7b
 - google.pkcs7.p7b
 - google.single.der
@@ skipping 118 matching lines @@
 - quic_root.crt
      These certificates are used by the ProofVerifier's unit tests of QUIC.
 
 ===== From net/data/ssl/scripts/generate-test-certs.sh
 - expired_cert.pem
 - ok_cert.pem
 - root_ca_cert.pem
     These certificates are the common certificates used by the Python test
     server for simulating HTTPS connections.
 
+- wildcard_.pem
+    A certificate and private key valid for *.example.org, used in various
+    net unit tests.
+
 - name_constraint_bad.pem
 - name_constraint_good.pem
     Two certificates used to test the built-in ability to restrict a root to
     a particular namespace.
 
 - bad_validity.pem
     A certificate and private key only valid on 0001-01-01. Windows refuses to
     parse this certificate.
 
 - sha256.pem: Used to test the handling of SHA-256 certs on Windows.
@@ skipping 128 matching lines @@
 ===== From net/data/ssl/scripts/generate-aia-certs.sh
 - aia-cert.pem
 - aia-intermediate.der
 - aia-root.pem
      A certificate chain which we use to ensure AIA fetching works correctly
      when using NSS to verify certificates (which uses our HTTP stack).
      aia-cert.pem has a caIssuers that points to "aia-test.invalid" as the URL
      containing the intermediate, which can be served via a URLRequestFilter.
      aia-intermediate.der is stored in DER form for convenience, since that is
      the form expected of certificates discovered via AIA.