[store] Fix IPv6 link-local address parsing and add IPv6 tests

[Azure-Tang]

Description

This PR fixes the IPv6 link-local address support issue reported in #1043. The problem was that IPv6 link-local addresses (e.g., fe80::xxx%interface) could not be properly parsed and used for RPC connections.

Testing

• add test: ipv6_client_test Link-local test with environment variable: MC_USE_IPV6=1 SERVER_ADDRESS_LL="[fe80::xxx:xxx:xxx:xxx%eno2]:17813"
  ./build/mooncake-store/tests/ipv6_client_test
  --gtest_filter="IPv6ClientTest.BasicPutGetOverLinkLocalIPv6" [ PASSED ] 1 test.

• Verified mooncake_master can listen on link-local address using netstat -lnp

Type of Change

• Types
  • [x] Bug fix
  • [ ] New feature
    • [ ] Transfer Engine
    • [ ] Mooncake Store
    • [ ] Mooncake EP
    • [ ] Integration
    • [ ] P2P Store
    • [ ] Python Wheel
  • [ ] Breaking change
  • [ ] CI/CD
  • [ ] Documentation update
  • [ ] Other

How Has This Been Tested?

Checklist

• [ ] I have performed a self-review of my own code.
• [ ] I have updated the documentation.
• [ ] I have added tests to prove my changes are effective.

[gemini-code-assist[bot]]

Summary of Changes

Hello @Azure-Tang, I'm Gemini Code Assist[^1]! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a critical bug preventing the proper parsing and utilization of IPv6 link-local addresses within the system, which was hindering RPC connections. The core changes involve enhancing the network utility functions to correctly interpret IPv6 addresses with scope IDs and introducing a dedicated, comprehensive test suite to ensure robust IPv6 client functionality across various address formats.

Highlights

• IPv6 Link-Local Address Parsing Fix: Resolved an issue where IPv6 link-local addresses (e.g., fe80::xxx%interface) could not be properly parsed, preventing their use for RPC connections. The isValidIpV6 and parseHostNameWithPort utility functions have been updated to correctly handle these addresses, including those with scope IDs and optional ports.
• Comprehensive IPv6 Test Suite: Introduced a new test file, ipv6_client_test.cpp, which includes unit tests for IPv6 address parsing logic and integration tests for basic Put/Get and batch operations over IPv6 loopback and link-local addresses. This significantly improves IPv6 support validation.
• Dependency Update: The yalantinglibs dependency has been updated from version 0.5.5 to 0.5.6 in dependencies.sh.

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[ykwd]

/gemini review

[ykwd]

@Azure-Tang Could you take a look at Gemini's review?