[#5112] Increase gunicorn timeout in training-env

Some requests timeout because the backend takes too long to respond.
The frontend then retries them sometimes which can lead to creation of multiple objects
 as is the case when creating a contributing project in a program.

ci/training-envs/templates/deployment.yaml

@@ -127,7 +127,7 @@ spec:
           value: "something random"
         - &gunicorn-debug-args
           name: GUNICORN_DEBUG_ARGS
-          value: "--workers 4"
+          value: "--workers 4 --timeout 60"
         - &db-password
           name: DB_PASSWORD
           valueFrom: