chore: Test for printing array of strings

[vezenovm]

Description

Problem*

Resolves #2903

Summary*

I added a function regression_2903 to the debug_logs test that shows we can now accurately print arrays of strings. This was fixed in previous formatting work. I also removed std:: prefixes from println now that we have a prelude.

Additional Context

Documentation*

Check one:

• No documentation needed.
• Documentation included in this PR.
• [Exceptional Case] Documentation to be submitted in a separate PR.

PR Checklist*

• I have tested the changes locally.
• I have formatted the changes with Prettier and/or cargo fmt on default settings.

[github-actions]

Changes to circuit sizes

Generated at commit: d2466c3b5b4d445da94f44ecbaf2579b66d1a47a, compared to commit: 0a1d109f478c997da5c43876fd12464af638bb15

🧾 Summary (10% most significant diffs)

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
debug_logs	+3 ❌	+8.82%	0 ➖	0.00%

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Full diff report 👇

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
debug_logs	37 (+3)	+8.82%	10 (0)	0.00%