fix: remove node-fetch from js-client package

[mrstork]

Summary

Redoing #6383 Part of FRB-1833

TODO: Error + Retry handling

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[github-actions[bot]]

This pull request adds or modifies JavaScript (.js, .cjs, .mjs) files. Consider converting them to TypeScript.

[github-actions[bot]]

This pull request adds or modifies JavaScript (.js, .cjs, .mjs) files. Consider converting them to TypeScript.

[github-actions[bot]]

This pull request adds or modifies JavaScript (.js, .cjs, .mjs) files. Consider converting them to TypeScript.

[github-actions[bot]]

This pull request adds or modifies JavaScript (.js, .cjs, .mjs) files. Consider converting them to TypeScript.

[github-actions[bot]]

This pull request adds or modifies JavaScript (.js, .cjs, .mjs) files. Consider converting them to TypeScript.

[mrstork]

This change is currently blocked by a feature still supported in our CLI which uses proxy/http agents. That feature would first need to be removed before this change could go through. Alternatively, we would need to build in support for it to continue working as it does today.