Bug Fix - Eliminate deprecated response.buffer() invocation

[wi-ski]

Description of the change

These changes introduce:

1. Removal of the response.buffer() invocation (Deprecated)
2. Introduction of response.arrayBuffer()

This callsite is triggering noise in our error alerts, looks like:

(node:148) [node-fetch#buffer] DeprecationWarning: Please use 'response.arrayBuffer()' instead of 'response.buffer()'
(Use `node --trace-deprecation ...` to show where the warning was created)

Related node fetch issue: https://github.com/node-fetch/node-fetch/issues/1401

Type of change

• [x] Bug fix (non-breaking change that fixes an issue)
• [ ] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Related issues

Fixes

Checklists

Development

• [ ] The code changed/added as part of this pull request has been covered with tests
• [ ] All tests related to the changed code pass in development
• [ ] No previous tests unrelated to the changed code fail in development

Code review

• [x] This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached.
• [ ] At least one reviewer has been requested
• [ ] Changes have been reviewed by at least one other engineer
• [ ] The relevant project board has been selected in Projects to auto-link to this pull request

[newhouse]

@wi-ski going to take a slightly different approach to a solution that ensures backwards compatibility, but thank you and I will get this out ASAP!

[newhouse]

Closing in favor of https://github.com/anvilco/node-anvil/pull/443

[newhouse]

Fixed in v 3.3.0