chore(recaptcha_enterprise): update dependencies

[angelcaamal]

Description

Fixes b/560164191
Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

Note: Any check with (dev), (experimental), or (legacy) can be ignored and should not block your PR from merging (see CI testing).

[gemini-code-assist]

Code Review

This pull request updates the Node.js engine target to >=20.0.0 and upgrades various dependencies and devDependencies across the project's package.json files. The review feedback correctly identifies that several of the specified dependency versions (specifically body-parser v2, @types/node v24, c8 v12, and eslint v10) do not exist on the npm registry and would cause installation failures. Actionable suggestions are provided to revert or pin these to valid, stable versions.

[amcolin]

LGTM