Update bootstrap container script after bottlerocket version v0.51.0

[peirulu]

Description of changes:

• Use apiclient network configure to configure second network interface
• [Note] After this PR merged, the method of writing /var/lib/netdog/net.toml file will no longer works after Bottlerocket version v0.51.0, so update the script to use a newly added apiclient method to configure second network reference.

Testing

• Create an eks-a cluster with this bootstrap container script with template which includes this change, both NIC is up and running

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[eks-distro-bot]

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