Added 2.1.2 to caught versions of Qiskit in AdaptVQE

[tnemoz]

Summary

As per this comment in #244, Qiskit/qiskit#14714 will only be merged in the 2.2.0 release of Qiskit. As such, Qiskit/qiskit#14567 is still a problem in the 2.1.2 release.

We thus need to simplify the commutators ourselves in AdaptVQE in this qiskit release. This was already done for the 2.1.0 and 2.1.2 releases. This PR adds the 2.1.2 release to the versions in which to perform this additional operation.

This would prevent users from encountering errors when running AdaptVQE.

Note: this doesn't preclude having to pin the qiskit version to be different than 2.1.2 in requirements-dev.txt, since Qiskit/qiskit#14611 is not fixed in the 2.1.2 release either. However, while the later may not be encountered by users, it's way less certain for this issue, as seen from the fact that even basic unit test fail to pass when using AdaptVQE with qiskit 2.1.2.

[coveralls]

Pull Request Test Coverage Report for Build 17444577394

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 90.194%

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Totals
Change from base Build 17443303784:	0.0%
Covered Lines:	6659
Relevant Lines:	7383

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💛 - Coveralls