feat: install aznfs package on AzureLinux 3.0

[andyzhangx]

What type of PR is this?
/kind feature

What this PR does / why we need it:
feat: install aznfs package on AzureLinux 3.0

Per aznfs-mount team's recommendation, we still need to download a rpm package from PMC site, and then use dnf to install aznfs package on Azure Linux 3.0, below are the working command lines:

curl -sSL -O https://packages.microsoft.com/config/rhel/9/packages-microsoft-prod.rpm
dnf install packages-microsoft-prod.rpm -y
env AZNFS_NONINTERACTIVE_INSTALL=1 dnf install aznfs -y

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version
• commits are GPG signed and Github marks them as verified

Special notes for your reviewer:

Release note:

none

[Copilot]

Pull request overview

Adds Azure Linux 3.0 support in the VHD build pipeline to install the aznfs NFS client package from packages.microsoft.com (PMC) by downloading and installing the Microsoft repo RPM, then installing aznfs. This fits into AgentBaker’s VHD builder + shared Linux provisioning script set by ensuring the dependency is present on Azure Linux 3.0 images.

Changes:

• Invoke installAznfsPkgFromPMC during Mariner/AzureLinux VHD dependency installation.
• Add installAznfsPkgFromPMC implementation to the Mariner/AzureLinux install script.
• Regenerate/refresh multiple pkg/agent/testdata/**/CustomData snapshots.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
vhdbuilder/packer/install-dependencies.sh	Calls installAznfsPkgFromPMC during Mariner/AzureLinux (non-OSGuard) VHD build setup.
parts/linux/cloud-init/artifacts/mariner/cse_install_mariner.sh	Introduces installAznfsPkgFromPMC to download/install Microsoft repo RPM and install aznfs on Azure Linux 3.0.
pkg/agent/testdata/Marinerv2+DisableUnattendedUpgrades=true/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/Marinerv2+DisableUnattendedUpgrades=false/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/MarinerV2+Kata/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/MarinerV2+CustomCloud/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/MarinerV2+CustomCloud+USSec/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/MarinerV2+CustomCloud+USNat/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/AzureLinuxv2+DisableUnattendedUpgrades=true/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/AzureLinuxv2+DisableUnattendedUpgrades=false/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/AzureLinuxV3+Kata/CustomData	Updated generated CustomData snapshot.
pkg/agent/testdata/AzureLinuxV2+Kata/CustomData	Updated generated CustomData snapshot.

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[Copilot]

Pull request overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 6 comments.

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