[BUG] When volumes like configmaps, downwardAPI & emptyDir are mounted as volumes, they should be ignored during elastic volume checks

[HashNuke]

This issue surfaced after #1417 was resolved in a working branch.

Describe the bug

When volumes like configmaps, downwardAPI & emptyDir are mounted as volumes, they should be ignored during elastic volume checks.

The list of volume types in Kubernetes are available here. We should decide what volume types to ignore and what we should expect to be elastic to pass the test.

To Reproduce

1. Checkout branch 1398-main
2. Install the CNF sample_nonroot, which has no volumes defined in the manifest.
3. The elastic_volumes test would fail. Expected result is skip.

Screenshots

For the sample-elastic-volume CNF, the volumes detected are in the screenshot

For the sample_nonroot CNF, the volumes detected are in the screenshot below

[HashNuke]

Removing the certification tag. Will prioritize this at a later time. For now updating the spec test to match the result. Added a todo note in part of the code to mention the unhandled scenario.

[lixuna]

@HashNuke is still issue still relevant?