[BUG] Credit budget notification email shows inconsistent information

**Describe the bug**
The user set a user-defined daily limit on their account. When the daily limit reached, the user received an email with the following information:

Subject: [Pipedream] 81% of user-defined credit budget reached
Body: You've reached 80% of your included credits
You've used 80% of your plan's included credits for your current billing period...

The email body stated that **current billing period limit**, while the email subject is **user-defined credit budget**.

**Expected behavior**
The email body should also stated that the user reached **81% of user-defined credit budget reached**

**Additional context**
Reported by a customer: https://app.frontapp.com/open/msg_1nkizfev?key=HkL3U7JSBXwkwsGEjIOXg7okv5RI-uql