chore: install bpf dependencies before building binaries

[santhoshmprabhu]

Reason for Change:
Install dependencies for bpf programs before building binaries.

Validation:
Verified using make --trace

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• relevant PR labels added

Notes:

[Copilot]

Pull Request Overview

This PR adds the bpf-lib dependency to two binary build targets in the Makefile to ensure BPF (Berkeley Packet Filter) dependencies are installed before building binaries that require them.

• Adds bpf-lib as a prerequisite for the ipv6-hp-bpf-binary target
• Adds bpf-lib as a prerequisite for the azure-block-iptables-binary target

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[santhoshmprabhu]

/azp run Azure Container Networking PR

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).