Use different cipher in one more CMS test

Followup to ec4d926a80fe93c80d2b52f0178bc627097d9288 -- I failed
to squash in this commit.

Migrate SKIPIF -> EXTENSIONS (#7138)

This is an automated migration of most SKIPIF extension_loaded checks.

Replace EXPECTF when possible

Closes GH-5779

Add support for Cryptographic Message Syntax (CMS)

It add CMS (RFC 5652) support, which is an update to PKCS7. The functions
are analogous BUT NOT IDENTICAL to openssl_pkcs7*. In parti

Add support for Cryptographic Message Syntax (CMS)

It add CMS (RFC 5652) support, which is an update to PKCS7. The functions
are analogous BUT NOT IDENTICAL to openssl_pkcs7*. In particular, support for
different encodings (PEM, DER, SMIME) is now available.

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