feat: add C implementation for `blas/base/ssyr`

[aman-095]

Progresses #2039.

Description

What is the purpose of this pull request?

This pull request proposes to add C implementation for blas/base/ssyr.

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses #2039

Questions

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No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• [x] Read, understood, and followed the contributing guidelines.

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