Fix Healthchecks API calls (#4823)

## Description
Fixed Healthchecks API calls on the machines page of the website

<!--- Please provide a summary of your changes. Make sure to include
relevant motivation, context, and link related documents/conversations.
-->

<!--- Use [linking
keywords](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)
like `Resolves #<issue_number>` to automatically close issues. -->


## Checklist
- [x] I have read and understood the [WATcloud
Guidelines](https://cloud.watonomous.ca/docs/community-docs/watcloud/guidelines)
- [x] I have performed a self-review of my code

Author: vin-jl

scripts/generate-website-config.py

@@ -15,7 +15,7 @@ def generate_fixtures(outputs_path):
     return {
         "discord_invite_code": discord_outputs["watcloud_website_invite_code"],
         # Obtained from https://healthchecks.io/projects/7acc2ad3-f672-40c9-a061-12c8fd128f8b/settings/
-        "healthchecksio_read_key": "tCsst0GSKpfvslmpmlsmivRrUCRuv6Iv",
+        "healthchecksio_read_key": "hcr_RNvMq5zwrGcvXurloN5mF9ino3qs",
         "sentry_dsn": sentry_outputs["watcloud-website-dsn"],
         # Obtained from https://analytics.google.com/analytics/web/#/p405574179/reports/intelligenthome
         "ga_measurement_id": "G-F19HMC41TD",