Update EC certs to use NIST-256 and NIST-384
diff --git a/tests/data_files/test-int-ca2.key b/tests/data_files/test-int-ca2.key
index ef3798c..9df5b7a 100644
--- a/tests/data_files/test-int-ca2.key
+++ b/tests/data_files/test-int-ca2.key
@@ -1,5 +1,6 @@
 -----BEGIN EC PRIVATE KEY-----
-MF8CAQEEGFgy1xMAKfxIVYM/GIkSort30RcWwJOv3aAKBggqhkjOPQMBAaE0AzIA
-BBfzcOFR/YLf1lDCbXSkbMrHpWOp4E6X8NVw7ZSzE9l3sAQgICBw0KHkJVSJMbHU
-Rg==
+MIGkAgEBBDAtxOHUV4be1MdH1frBHzxITCyUSxrVjJN8QTvTVk558ka0a3zhd4Pb
+ekWt7wBPXQegBwYFK4EEACKhZANiAATw6KHd9flIt43V2YWdxCVYzD35jqxduWGW
+tcHGFfGPB3CkIcQ2f5+hRV2uphVhrtK6/dBV47qcnX0fdA2LFbyKTU/6HGxtqrxu
+1rvy8DIeYLgSZdAuDXDujFv1DzapfVg=
 -----END EC PRIVATE KEY-----