deps(deno): refresh Deno SDK dependencies

[qw-in]

Update the Deno example to Arcjet 1.13.0 and its current compatible Connect and Protobuf dependencies.

[arcjet-review]

Arcjet Review — 🟢 Low Risk

Decision: Approved

Rationale: Simple version bump of two Arcjet npm packages (@arcjet/deno and @arcjet/inspect) from 1.12.0 to 1.13.0 in the Deno example's deno.json. No source code changes, no security-sensitive surface touched, and the change is scoped to an example project.

Summary of Changes

Bumps @arcjet/deno and @arcjet/inspect from 1.12.0 to 1.13.0 in examples/deno/deno.json.

Notes

The description mentions Connect and Protobuf dependencies, which are not directly declared in deno.json but come transitively through @arcjet/deno@1.13.0. The description is a reasonable characterization of the effective upgrade.

Path filtering: 1 file excluded by ignore paths. 1 of 2 files included in review.

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