[minor] [Engg.]: Submodule Update: Mobile Onboarding Intergration Changes

[swasti29]

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• PR size is <= 500 LOC per PR Size Check policy
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Proposed changes

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Type of change

• Feature work
• Bug fix
• Documentation
• Engineering change
• Test
• Logging/Telemetry

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• High – Errors could cause MAJOR regression of many scenarios. (Example: new large features or high level infrastructure changes)
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Additional information

[azure-pipelines]

This pull request does not update CHANGELOG.md.

Please consider if this change would be noticeable to a partner or user and either update CHANGELOG.md or resolve this conversation.

[Copilot]

Pull request overview

This PR updates the MSAL/IdentityCore git submodule pointer to bring in "Mobile Onboarding Integration" changes from the IdentityCore (microsoft-authentication-library-common-for-objc) repository. No MSAL-owned source code is changed; only the submodule SHA is bumped.

Changes:

• Bumps the MSAL/IdentityCore submodule pointer to a newer commit containing mobile onboarding integration work.