Add email scope to auth config.

[Malith-19]

Purpose

• $subject
• Need to add this because we need to get the email in the id token for asgardeo.

Checklist

• e2e cypress tests locally verified. (for internal contributers)
• Manual test round performed and verified.
• UX/UI review done on the final implementation.
• Documentation provided. (Add links if there are any)
• Relevant backend changes deployed and verified
• Unit tests provided. (Add links if there are any)
• Integration tests provided. (Add links if there are any)

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines
• Ran FindSecurityBugs plugin and verified report
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets

[pavinduLakshan]

Shouldn't including SYSTEM or profile send email in the id token?

[Malith-19]

No at the moment.

[wso2-jenkins-bot]

🦋 Changeset detected

The changes in this PR will be included in the next version bump.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.85%. Comparing base (eafa9eb) to head (a44d30d).
Report is 289 commits behind head on master.

Additional details and impacted files

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  Coverage   41.85%   41.85%           
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  Files          42       42           
  Lines         939      939           
  Branches      230      217   -13     
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  Hits          393      393           
- Misses        502      546   +44     
+ Partials       44        0   -44     

Flag	Coverage Δ
@wso2is/core	41.85% <ø> (ø)

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see 12 files with indirect coverage changes