Update EC certs to use NIST-256 and NIST-384
diff --git a/tests/data_files/server7_int-ca.crt b/tests/data_files/server7_int-ca.crt
index 75c9dc6..d3ddc46 100644
--- a/tests/data_files/server7_int-ca.crt
+++ b/tests/data_files/server7_int-ca.crt
@@ -1,29 +1,47 @@
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----