Test for both PKCS 7 bugs found by OSS-Fuzz

Previously the same test was repeated twice.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/tests/suites/test_suite_pkcs7.data b/tests/suites/test_suite_pkcs7.data
index f3cbb62..571d5ad 100644
--- a/tests/suites/test_suite_pkcs7.data
+++ b/tests/suites/test_suite_pkcs7.data
@@ -68,7 +68,7 @@
 
 pkcs7_get_signers_info_set error handling (4541044530479104)
 depends_on:MBEDTLS_RIPEMD160_C
-pkcs7_parse:"data_files/pkcs7_get_signers_info_set-missing_free-fuzz_pkcs7-6213931373035520.der":MBEDTLS_ERR_PKCS7_INVALID_SIGNER_INFO + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+pkcs7_parse:"data_files/pkcs7_get_signers_info_set-leak-fuzz_pkcs7-4541044530479104.der":MBEDTLS_ERR_PKCS7_INVALID_SIGNER_INFO
 
 PKCS7 Only Signed Data Parse Pass #15
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C