test: use ciphers supported by shared OpenSSL

On Debian with OpenSSL 1.1 CLI, the ciphers used in those tests were
unknown.

PR-URL: #14566
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: kapouer

test/parallel/test-tls-ecdh-disable.js

@@ -35,7 +35,7 @@ const fs = require('fs');
 const options = {
   key: fs.readFileSync(`${common.fixturesDir}/keys/agent2-key.pem`),
   cert: fs.readFileSync(`${common.fixturesDir}/keys/agent2-cert.pem`),
-  ciphers: 'ECDHE-RSA-RC4-SHA',
+  ciphers: 'ECDHE-RSA-AES128-SHA',
   ecdhCurve: false
 };
 

test/parallel/test-tls-set-ciphers.js

@@ -36,7 +36,7 @@ const fs = require('fs');
 const options = {
   key: fs.readFileSync(`${common.fixturesDir}/keys/agent2-key.pem`),
   cert: fs.readFileSync(`${common.fixturesDir}/keys/agent2-cert.pem`),
-  ciphers: 'DES-CBC3-SHA'
+  ciphers: 'AES256-SHA'
 };
 
 const reply = 'I AM THE WALRUS'; // something recognizable