Try to fix Color picker of lists is empty. Part 3.

Thanks to bronger and xet7 !

Related #3418

packages/wekan-oidc/oidc_server.js

@@ -4,7 +4,7 @@ httpCa = false;
 if (process.env.OAUTH2_CA_CERT !== undefined) {
     try {
         const fs = Npm.require('fs');
-        if (fs.existsSync(process.env.OAUTH2_CA_CERT) {
+        if (fs.existsSync(process.env.OAUTH2_CA_CERT)) {
           httpCa = fs.readFileSync(process.env.OAUTH2_CA_CERT);
         }
     } catch(e) {