Updated the error handling in and_gate.py

[HarshRaj29004]

Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

Checklist:

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Fixes #13701

[cclauss]

Do not remove tests unless the commit message explains why.