Parse RFQT environment variables as CSV, not JSON

Addresses review comment #162 (comment)

Author: feuGeneA

package.json

@@ -10,7 +10,7 @@
         "clean:ts": "shx rm -rf lib",
         "clean:docker": "shx rm -rf 0x_mesh/db",
         "build": "tsc -p tsconfig.json",
-        "test": "ETHEREUM_RPC_URL=http://localhost:8545 CHAIN_ID=1337 RFQT_API_KEY_WHITELIST='[\"koolApiKey1\"]' RFQT_MAKER_ENDPOINTS='[\"http://localhost:4000\"]' mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --timeout 100000 --exit",
+        "test": "ETHEREUM_RPC_URL=http://localhost:8545 CHAIN_ID=1337 RFQT_API_KEY_WHITELIST='koolApiKey1,koolApikey2' RFQT_MAKER_ENDPOINTS='http://localhost:4000,http://localhost:4000' mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --timeout 100000 --exit",
         "dev": "nodemon -r dotenv/config src/index.ts | pino-pretty",
         "dev:service:http": "nodemon -r dotenv/config src/runners/http_service_runner.ts | pino-pretty",
         "dev:service:sra_http": "nodemon -r dotenv/config src/runners/http_sra_service_runner.ts | pino-pretty",

src/config.ts

@@ -100,9 +100,9 @@ export const LIQUIDITY_POOL_REGISTRY_ADDRESS: string | undefined = _.isEmpty(
           EnvVarType.ETHAddressHex,
       );
 
-export const RFQT_API_KEY_WHITELIST: string[] = JSON.parse(process.env.RFQT_API_KEY_WHITELIST || '[]');
+export const RFQT_API_KEY_WHITELIST: string[] = (process.env.RFQT_API_KEY_WHITELIST || '[]').split(',');
 
-export const RFQT_MAKER_ENDPOINTS: string[] = JSON.parse(process.env.RFQT_MAKER_ENDPOINTS || '[]');
+export const RFQT_MAKER_ENDPOINTS: string[] = (process.env.RFQT_MAKER_ENDPOINTS || '[]').split(',');
 
 // Max number of entities per page
 export const MAX_PER_PAGE = 1000;