Update SendGrid API key reference in production configuration and che…

[rsmoke]

…ck task

• Changed the reference from :api_key to :apikey in both the production environment configuration and the SendGrid API key check task.
• This update ensures consistency in accessing the SendGrid API key from Rails credentials, improving the reliability of email delivery functionalities.

Pull Request

Description

Related Issues

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings