chore(NODE-6018): run entire BSON suite on a big endian machine

[nbbeeken]

Description

What is changing?

• Add entire suite to zSeries machines to get full coverage on a big endian machine
• Adds Node.js 22 to BSON CI and bump to 22 in tasks that are node version agnostic
• Skip npm pack test (unnecessary to run on more than one platform)
• fix double test for big endian environment
• Upgraded to RHEL 9 on zSeries because rollup requires GLIBC 2.29+

Is there new documentation needed for these changes?

No

What is the motivation for this change?

Prepare for future feature work that is endian sensitive.

Double check the following

• Ran npm run check:lint script
• Self-review completed using the steps outlined here
• PR title follows the correct format: type(NODE-xxxx)[!]: description
  • Example: feat(NODE-1234)!: rewriting everything in coffeescript
• Changes are covered by tests
• New TODOs have a related JIRA ticket