fix: corrected sparsify_label docstring example to match actual return ordering

[neuralsorcerer]

Changes:

• Corrected sparsify_label docstring example to match actual return ordering: "XIIIZ" -> ("ZX", [0, 4]).
• Also fixed a typo from no.newaxis to np.newaxis.

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[coveralls]

Pull Request Test Coverage Report for Build 16946508612

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 13 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.007%) to 88.239%

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Files with Coverage Reduction	New Missed Lines	%
crates/circuit/src/parameter/parameter_expression.rs	1	83.39%
crates/circuit/src/parameter/symbol_expr.rs	1	74.42%
crates/qasm2/src/expr.rs	1	93.63%
crates/qasm2/src/lex.rs	4	92.53%
crates/qasm2/src/parse.rs	6	96.62%

Totals
Change from base Build 16944327987:	-0.007%
Covered Lines:	87202
Relevant Lines:	98825

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💛 - Coveralls