chore: enable SSL with rejectUnauthorized (#1039)

* chore: enable SSL with rejectUnauthorized for Sequencer MySQL

* chore: enable SSL with rejectUnauthorized for Hub MySQL

Author: bonustrack

src/helpers/mysql.ts

@@ -19,6 +19,7 @@ hubConfig.connectTimeout = 60e3;
 hubConfig.acquireTimeout = 60e3;
 hubConfig.timeout = 60e3;
 hubConfig.charset = 'utf8mb4';
+hubConfig.ssl = { rejectUnauthorized: true };
 
 const hubDB = mysql.createPool(hubConfig);
 
@@ -33,6 +34,8 @@ sequencerConfig.connectTimeout = 60e3;
 sequencerConfig.acquireTimeout = 60e3;
 sequencerConfig.timeout = 60e3;
 sequencerConfig.charset = 'utf8mb4';
+sequencerConfig.ssl = { rejectUnauthorized: true };
+
 const sequencerDB = mysql.createPool(sequencerConfig);
 
 bluebird.promisifyAll([Pool, Connection]);