Add .env.testing for CI pipeline

.env.testing

@@ -0,0 +1,25 @@
+APP_NAME=Laravel
+APP_ENV=testing
+APP_KEY=base64:5VABFQKtzx6flRFn7rQUQYI/G8xLnkUSYPVaYz2s/4M=
+APP_DEBUG=true
+APP_URL=http://localhost
+
+APP_MAINTENANCE_DRIVER=file
+
+BCRYPT_ROUNDS=4
+
+LOG_CHANNEL=stack
+LOG_STACK=single
+
+DB_CONNECTION=sqlite
+DB_DATABASE=:memory:
+
+SESSION_DRIVER=array
+
+BROADCAST_CONNECTION=log
+FILESYSTEM_DISK=local
+QUEUE_CONNECTION=sync
+
+CACHE_STORE=array
+
+MAIL_MAILER=array