Add explicit timeout to Cloudsmith API requests

[Copilot]

requests.get and requests.put in update_policy.py had no timeout, risking the workflow hanging indefinitely on slow or unresponsive API calls.

Changes

• exemptions/update_policy.py
  • Added REQUEST_TIMEOUT = 30 constant
  • Applied timeout=REQUEST_TIMEOUT to both fetch_policy (GET) and update_policy (PUT)

REQUEST_TIMEOUT = 30

def fetch_policy():
    r = requests.get(POLICY_URL, headers=HEADERS, timeout=REQUEST_TIMEOUT)
    ...

def update_policy(policy, rego):
    ...
    r = requests.put(POLICY_URL, headers=HEADERS, json=payload, timeout=REQUEST_TIMEOUT)

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