Address Snyk issues

[juniortaeza]

Desired Outcome

This pull request addresses the Snyk issues outlined in this repository.

Implemented Changes

• upgrades ruby to 3.2 in Dockerfile, Dockerfile.dev, and Dockerfile.test
• upgrades Go base image in buildpack-health-check/Dockerfile to 1.20-alpine
• upgrades golang.org/x/sys to v0.8.0

As discussed with @gl-johnson and @andytinkham, upgrading rack to 3.x is currently infeasible as rails, actionpack, and other dependencies require rack < 3. Currently, the build (tests) are failing due to this incompatibility of rack >= 3 and rails/etc.

Changelog

• The CHANGELOG has been updated, or
• This PR does not include user-facing changes and doesn't require a
  CHANGELOG update

Test coverage

• This PR includes new unit and integration tests to go with the code
  changes, or
• The changes in this PR do not require tests

Documentation

• Docs (e.g. READMEs) were updated in this PR
• A follow-up issue to update official docs has been filed here: [insert issue ID]
• This PR does not require updating any documentation

Behavior

• This PR changes product behavior and has been reviewed by a PO, or
• These changes are part of a larger initiative that will be reviewed later, or
• No behavior was changed with this PR

Security

• Security architect has reviewed the changes in this PR,
• These changes are part of a larger initiative with a separate security review, or
• There are no security aspects to these changes

[juniortaeza]

Requesting @gl-johnson's review to confirm proper switch to 'roda' from 'sinatra'

[gl-johnson]

LGTM