Fix documentation for utils.optionals data values (backport #13098)

[mergify[bot]]

We're adding proper support to .. py:data:: to docs.quantum.ibm.com. However, we cannot easily handle .. py:data:: being inside a table - it would complicate both the code and visual design.

So, this PR removes the table and uses .. py:data:: like we use it everywhere else in Qiskit.

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This is an automatic backport of pull request #13098 done by Mergify.

[qiskit-bot]

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[coveralls]

Pull Request Test Coverage Report for Build 10729594002

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 10 unchanged lines in 4 files lost coverage.
• Overall coverage increased (+0.02%) to 89.795%

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Files with Coverage Reduction	New Missed Lines	%
crates/circuit/src/packed_instruction.rs	1	96.21%
crates/accelerate/src/results/marginalization.rs	1	90.45%
crates/accelerate/src/synthesis/clifford/utils.rs	1	78.06%
crates/circuit/src/circuit_instruction.rs	7	86.33%
<!--	Total:	10		-->

Totals
Change from base Build 10719167310:	0.02%
Covered Lines:	66874
Relevant Lines:	74474

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💛 - Coveralls