Update build-time calls to OpenProcessing to use Bearer Token

[clairep94]

Follow-up for: #831 (comment)

Context:

Open Processing API will be updating to allow consumers to pass a BEARER token into their request which will allow them to bypass rate limits.

When this is ready, p5.js website can be updated to use this token when compiling static-builds.

Required changes:

For GHA/deployment, this token can be added to the action secrets for this repo, and the build workflow files should be updated to use this token when making calls to OP API.

For local builds by open-source contributors, if the token is not shared, there may need to be updates to contribution documentation to indicate that local builds may fail due to hitting rate limits, but will not do so when automated tests run on open PRs.

Would you like to work on this issue?

Happy to do so, or have it be assigned -- I think the part where the token is added to GHA secrets will require admin access to the repo, but I'm happy to do the GHA workflow file updates once the token is added