feat: add experimental_readRawConfig and experimental_patchBindingsConfig

[emily-shen]

Fixes DEVX 1423 and DEVX 1424

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Latest commit: 6873b53

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[email protected] includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20241205.0
workerd	1.20241205.0	1.20241205.0
workerd --version	1.20241205.0	2024-12-05

Please ensure constraints are pinned, and miniflare/workerd minor versions match.