tf: configurable disk iops, GH configurable standalone apm instance size, use NVMe disk if available

[carsonip]

Motivation/summary

• Configurable disk IOPS which is a required field for io2 volume type
• GH configurable standalone apm instance size
• Use NVMe disk for data directory for instance types with d., e.g. c6id.2xlarge

Checklist

• Update CHANGELOG.asciidoc
• Documentation has been updated

For functional changes, consider:

• Is it observable through the addition of either logging or metrics?
• Is its use being published in telemetry to enable product improvement?
• Have system tests been added to avoid regression?

How to test these changes

Related issues

[mergify]

This pull request does not have a backport label. Could you fix it @carsonip? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-7.17 is the label to automatically backport to the 7.17 branch.
• backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit.
• backport-9./d is the label to automatically backport to the 9./d branch. /d is the digit.
• backport-8.x is the label to automatically backport to the 8.x branch.
• backport-active-all is the label that automatically backports to all active branches.
• backport-active-8 is the label that automatically backports to all active minor branches for the 8 major.
• backport-active-9 is the label that automatically backports to all active minor branches for the 9 major.

[carsonip]

Superseded by #15624

[mergify]

⚠️ The sha of the head commit of this PR conflicts with #15624. Mergify cannot evaluate rules on this PR. ⚠️