disable ui5 plugin for tests (#1310)

Disables the cds ui5 plugin for mocha tests, removing the need for the
forceful mocha exit introduced with #1286 .

---------

Co-authored-by: Christian Georgi <chgeo@users.noreply.github.com>

Author: Akatuoro

package.json

@@ -12,7 +12,7 @@
     "lint": "npx eslint .",
     "start": "cds-serve",
     "test": "jest",
-    "test:mocha": "npx -y mocha --exit",
+    "test:mocha": "npx -y mocha",
     "travel-processor": "cds-tsx watch --open sap.fe.cap.travel/index.html?sap-ui-xx-viewCache=false",
     "travel-analytics": "cds-tsx watch --open sap.fe.cap.travel_analytics/index.html?sap-ui-xx-viewCache=false"
   },

test/setup.ts

@@ -1,5 +1,7 @@
 // for mocha
 process.env.CDS_TYPESCRIPT = "true"
+// disables cds-ui5-plugin as otherwise it would not let mocha tests terminate
+process.env.CDS_PLUGIN_UI5_ACTIVE="false"
 
 // for jest
 module.exports = async () => {}