chore(deps): update pydantic-monty requirement from <0.0.8,>=0.0.4 to >=0.0.4,<0.0.19

[dependabot]

Updates the requirements on pydantic-monty to permit the latest version.

Release notes

Sourced from pydantic-monty's releases.

v0.0.18 - 2026-05-29

What's Changed

• switch pre-commit -> prek by @​samuelcolvin in pydantic/monty#392
• gc: properly release references held by values in cycles by @​davidhewitt in pydantic/monty#399
• bump to Rust 1.95 by @​davidhewitt in pydantic/monty#401
• fix GC tracking for datetime.tzinfo by @​rsr5 in pydantic/monty#397
• clean up some dict view implementations by @​davidhewitt in pydantic/monty#402
• convert py_repr methods to take &mut VM by @​davidhewitt in pydantic/monty#403
• make Task have owning references to its coroutine / gather by @​davidhewitt in pydantic/monty#404
• fix hash equality for trivial types by @​davidhewitt in pydantic/monty#405
• further isolate unsafe code within Heap implementation by @​davidhewitt in pydantic/monty#406
• fix: parse errors must not leak ruff AST Debug formatting by @​smigolsmigol in pydantic/monty#390
• ci: fix lint failures from nightly clippy by @​davidhewitt in pydantic/monty#415
• Add gc.collect() function only with test-hooks feature by @​davidhewitt in pydantic/monty#398
• merge lifetimes in VM to a single lifetime by @​davidhewitt in pydantic/monty#416
• fix lifetimes from conflicting merges to main by @​davidhewitt in pydantic/monty#417
• fix no active frame panic on duplicate coroutine in gather by @​rsr5 in pydantic/monty#410
• cache the hash value of interned / static strings by @​davidhewitt in pydantic/monty#418
• fix: avoid panic when list.sort() key callback mutates the list by @​SAY-5 in pydantic/monty#413
• implement "trial deletion" GC to collect cycles by @​davidhewitt in pydantic/monty#407
• reject reusing an already-awaited external future via gather by @​rsr5 in pydantic/monty#420
• Add dart/flutter bindings by @​runyaga in pydantic/monty#414
• inline hash caching directly into relevant types by @​davidhewitt in pydantic/monty#422
• Fix async external function exception propagation by @​vivekraghuram in pydantic/monty#424
• note that make install-py is often necessary in CLAUDE.md by @​davidhewitt in pydantic/monty#426
• fix typo in CLAUDE.md by @​davidhewitt in pydantic/monty#427
• fix exception stack corruption in various raise cases by @​davidhewitt in pydantic/monty#428
• avoid unbounded recursion in two tuple traversal cases by @​davidhewitt in pydantic/monty#429
• move all String heap allocation to go through allocate_string helper by @​davidhewitt in pydantic/monty#430
• Bound AST depth produced by folding flat elif and bool-op chains by @​dsp-ant in pydantic/monty#437
• Pre-check requested size in bytes(int) constructor against resource l… by @​dsp-ant in pydantic/monty#435
• Clean up compiler - no longer emit dead code, simpler exception handlers, ensure jumps hit the same depth by @​davidhewitt in pydantic/monty#432
• agents: note that certain heap operations only need &Heap by @​davidhewitt in pydantic/monty#441
• refactor GatherFuture to be a state machine by @​davidhewitt in pydantic/monty#433
• fix panic on duplicate parameter names by @​smigolsmigol in pydantic/monty#382
• only swallow AttributeError in getattr by @​davidhewitt in pydantic/monty#442
• deduplicate source lines in tracebacks by @​davidhewitt in pydantic/monty#443
• fix more panics by @​davidhewitt in pydantic/monty#372
• fix further panics in integer operations by @​davidhewitt in pydantic/monty#444
• optimize operand load on bytecode loop by @​davidhewitt in pydantic/monty#446
• simplify jump calculation by @​davidhewitt in pydantic/monty#445
• refactor futures to have state machines like gather by @​davidhewitt in pydantic/monty#447
• Bound except-clause tuple matching by the recursion-depth limit by @​dsp-ant in pydantic/monty#439
• Bound container pre-allocation driven by iterator size hints by @​dsp-ant in pydantic/monty#434
• optimize cycle collector to have per-node work stack, not per-edge by @​davidhewitt in pydantic/monty#450
• move limits in the compiler to return syntax errors rather than panic by @​davidhewitt in pydantic/monty#449
• enforce JSON integers do not exceed Monty's BigInt limits by @​davidhewitt in pydantic/monty#431
• avoid unbounded recursion in monty_to_py by @​davidhewitt in pydantic/monty#453
• avoid UB in Heap::dec_ref by @​davidhewitt in pydantic/monty#451
• Implement open builtin, with limitations by @​samuelcolvin in pydantic/monty#456

... (truncated)

Commits

• 45a3b2d prep v0.0.18 release (#476)
• 10ab8bd apply INT_MAX_STR_DIGITS guard to natural JSON BigInt path (#475)
• 7853e85 proc macro for function signature parsing (#467)
• e96d57b fix(file): do not serialize OpenFile buffer_meta cache across snapshots (#471)
• 921d83f Fstring precision limits (#474)
• e985751 fix overlay append quota (#472)
• f203cc4 Cap comprehension generator count to prevent compiler stack overflow (#470)
• 757cfdf update limitations to reflect #458
• c69c5df fix: name-based identity and equality for external function values (#458)
• 9b5f478 Ruff depth limit (#391)
• Additional commits viewable in compare view

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