[Test] Test stabilization fixes for 3.16.1: patchibng, build-image no-internet, multi_az_fsx

[gmarciani]

Description of changes

Chery-picked

• [Test] test_patching_cluster: fix kernel pinning for RHEL and Fix and stabilize checks for kernel modules #7602
• [Test] Networking setup: honor the AZ allowlisting everywhere in the networking setup and exclude eu-west-2d. #7603
• [Test] test_multi_az_fsx: use flexible instance types to prevent the risk of ICEs and instance types not being supported. #7604
• [Test] Stabilize bootstrap of proxy instance used for testing and facilitate troubleshooting #7606

plus:

• fix to AZ allowlisting to make dynamic capacity reservation honor the allowlisting. This fix is required otherwise the change in [Test] Networking setup: honor the AZ allowlisting everywhere in the networking setup and exclude eu-west-2d. #7603 could cause failures due to capacvity reservation targeting AZs that the VPC stack would not allow.
• additional improvements to proxy infra to prevent failures in verifications made by proxy client (the cherry-picked commits above stabilized the proxy instance, but not the proxyclient instance).
• pinning parent image used by build-image tests for RHEL9 to version 9.8. This pinning is needed because previous versions require the paid Extended Update Support (EUS) repos to be configured to install required packages, such as kernel-devel.
• build_image_no_internet: make the build-image config used by the test honor the flag to enable/disable Lustre installation. As a result, we disable Lustre installation on ubuntu, the same way we do for test_build_image.

Tests

ONGOING

test-suites:
  createami:
    test_createami.py::test_build_image_no_internet:
      dimensions:
        # RHEL family (rhel8, rhel9) -> Red Hat Enterprise Linux reservation platform
        - regions: [{{ g4dn_2xlarge_CAPACITY_RESERVATION_2_INSTANCES_3_HOURS_NOPG_rhel9 }}]
          instances: ["g4dn.2xlarge"]
          oss: ["rhel9"]
        # Non-RHEL family (alinux2023, ubuntu2204, ubuntu2404, rocky8, rocky9) -> Linux/UNIX reservation platform
        - regions: [{{ g4dn_2xlarge_CAPACITY_RESERVATION_5_INSTANCES_3_HOURS_NOPG_ubuntu2404 }}]
          instances: ["g4dn.2xlarge"]
          oss: ["alinux2023", "ubuntu2204", "ubuntu2404"]
  storage:
    test_fsx_lustre.py::test_multi_az_fsx:
      dimensions:
        - regions: ["eu-west-2"]
          instances: {{ common.INSTANCES_DEFAULT_X86 }}
          oss: [{{ LUSTRE_OS_X86_1 }}]
          schedulers: ["slurm"]
  patching:
    test_patching.py::test_patching_cluster:
      dimensions:
        - regions: [{{ g4dn_8xlarge_CAPACITY_RESERVATION_4_INSTANCES_2_HOURS_NOPG_ubuntu2404 }}]
          instances: ["g4dn.8xlarge"]
          oss: ["ubuntu2204","ubuntu2404"]
          schedulers: ["slurm"]
          flags: ["patching:full-capped"]
        - regions: [{{ g4dn_8xlarge_CAPACITY_RESERVATION_4_INSTANCES_2_HOURS_NOPG_rhel9 }}]
          instances: ["g4dn.8xlarge"]
          oss: ["rhel8","rhel9"]
          schedulers: ["slurm"]
          flags: ["patching:full-capped"]
        - regions: [{{ g4dn_8xlarge_CAPACITY_RESERVATION_2_INSTANCES_2_HOURS_NOPG_alinux2023 }}]
          instances: ["g4dn.8xlarge"]
          oss: ["alinux2023"]
          schedulers: ["slurm"]
          flags: ["patching:full"]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.