dev: add 4m step limit to cairo runner (#1120)

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- [ ] Bugfix
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## What is the current behavior?

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Resolves #1115

## What is the new behavior?

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tests/fixtures/starknet.py

@@ -17,6 +17,7 @@
 from starkware.cairo.lang.vm.cairo_runner import CairoRunner
 from starkware.cairo.lang.vm.memory_dict import MemoryDict
 from starkware.cairo.lang.vm.memory_segments import FIRST_MEMORY_ADDR as PROGRAM_BASE
+from starkware.cairo.lang.vm.utils import RunResources
 from starkware.starknet.business_logic.execution.execute_entry_point import (
     ExecuteEntryPoint,
 )
@@ -215,7 +216,8 @@ def _factory(entrypoint, **kwargs) -> list:
             },
             static_locals={"debug_info": debug_info(program)},
         )
-        runner.run_until_pc(stack[-1])
+        run_resources = RunResources(n_steps=4_000_000)
+        runner.run_until_pc(stack[-1], run_resources)
         runner.original_steps = runner.vm.current_step
         runner.end_run(disable_trace_padding=False)
         runner.relocate()