`cardano-up context env` does not show updated dynamic ports after cardano-up down and cardano-up up

[verbotenj]

The command cardano-up context env does not update the dynamic ports after executing the sequence of cardano-up down followed by cardano-up up.

• Run cardano-up context env
• Execute cardano-up down
• Execute cardano-up up
• Run cardano-up context env

Expected Behavior:
The command cardano-up context env should reflect the current dynamic ports.

Actual Behavior:
The dynamic ports need to be updated, causing potential conflicts.

[wolf31o2]

See #245