fix: Restore or remove commented tests

[zlangley]

Deleted tests alraedy exist in stark-backend

[github-actions]

group	app.proof_time_ms	app.cycles	app.cells_used	leaf.proof_time_ms	leaf.cycles	leaf.cells_used
verify_fibair	(+5 [+0.2%]) 2,208	513,669	19,375,211	-	-	-
fibonacci_program	(-72 [-1.3%]) 5,267	1,500,095	51,485,080	-	-	-
regex_program	(-72 [-0.5%]) 15,215	1,914,103	165,455,373	-	-	-
ecrecover_program	(-26 [-1.0%]) 2,542	284,567	15,055,723	-	-	-

Commit: 3392a31

Benchmark Workflow