remove terminate in cua fallback (#2195)

skyvern/forge/prompts/skyvern/cua-fallback-action.j2

@@ -6,12 +6,11 @@ Help the user decide what to do next based on the assistant's message. Here's th
 - solve_captcha: the task is blocked by captcha and the assistant is asking the user to solve the captcha
 - complete: the user goal has been achieved
 - get_verification_code: the assistant is asking the user to provide a verification code (2FA, MFA or TOTP code). At this point, the code should have been sent to the user. If code hasn't been sent, do not return get_verification_code action.
-- terminate: the user goal cannot be achieved. Terminate the task. Examples: 1) there's not enough data provided to achieve the goal and the assistant is asking the user to provide more information. For examples: login is required and the user has not provided the login credentials or incorrect credentials are provided; a form needs to be filled and a required field is missing. 2) The site is stuck or not loading after multiple attempts. Do not terminate if receiving verification code is an option which has not been sent.
 - other: the assistant is asking the user to do something else
 
 Return the action to take next in the following JSON format:
 {
-    "action": str // complete, terminate, solve_captcha, get_verification_code, other
+    "action": str // complete, solve_captcha, get_verification_code, other
     "useful_information": str // If there is any useful information the assistant has provided that contributes to the user goal, put it here.
 }