Reconcile Worker script deletion contract drift

[zackbart]

Cloudflare's published OpenAPI contract for DELETE /accounts/{account_id}/workers/scripts/{script_name} changed after the last reviewed digest. The operation no longer declares a required empty application/json request body.

Connecta already sends this deletion with no request body and optionally supplies the documented force query parameter, so the observed drift does not require a runtime behavior change.

Acceptance criteria:

• confirm the current official contract still accepts the existing path parameters and optional force query parameter
• confirm the successful response remains compatible with Connecta's deletion acknowledgement
• record the reviewed Cloudflare endpoint digest
• make the provider drift check report no finding for this endpoint

[zackbart]

Reviewed against Cloudflare's current OpenAPI document. The operation retains the existing path parameters, optional force query parameter, and compatible success response; only the spurious required empty request body was removed. PR #518 records the new digest, and the spec drift check is clean.