test: change fixtures.readSync to fixtures.readKey

PR-URL: nodejs#27962
Reviewed-By: Sam Roberts <[email protected]>
Reviewed-By: Ujjwal Sharma <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: reasonablytall

test/parallel/test-tls-getprotocol.js

@@ -18,8 +18,8 @@ const clientConfigs = [
 
 const serverConfig = {
   secureProtocol: 'TLS_method',
-  key: fixtures.readSync('/keys/agent2-key.pem'),
-  cert: fixtures.readSync('/keys/agent2-cert.pem')
+  key: fixtures.readKey('agent2-key.pem'),
+  cert: fixtures.readKey('agent2-cert.pem')
 };
 
 const server = tls.createServer(serverConfig, common.mustCall(function() {

test/parallel/test-tls-keylog-tlsv13.js

@@ -9,8 +9,8 @@ const tls = require('tls');
 const fixtures = require('../common/fixtures');
 
 const server = tls.createServer({
-  key: fixtures.readSync('/keys/agent2-key.pem'),
-  cert: fixtures.readSync('/keys/agent2-cert.pem'),
+  key: fixtures.readKey('agent2-key.pem'),
+  cert: fixtures.readKey('agent2-cert.pem'),
   // Amount of keylog events depends on negotiated protocol
   // version, so force a specific one:
   minVersion: 'TLSv1.3',