[patch] Release v1.7.15

[kmrmt]

✨ New feature

• Add affinity to jobTemplate #2758 (#2760)
• feat: Implement delete expired index job #2702 (#2722)
• Add QUIC support #1771
• add example-client docker image #2705 (#2709)

♻️ Refactor

• refactor dockerfiles and update gitattributes #2743 (#2745)

🐛 Bugfix

• 🐛 Fix update deps workflow: buf is not found #2737 (#2739)
• [BUGFIX] resolve agent GetGraphStatistics API double-free error problem #2733
• fix rust-analyzer #2731 (#2732)
• Fix installation command for arm64 #2729 (#2730)
• fix not found error #2726 (#2727)
• Fix bind DOCKER_OPTS option #2718 (#2719)

✏️ Document

• Update README.md #2724 (#2725)
• 📝 Remove clj link #2710 (#2714)

💚 CI

• 💚 Multi-PF build for example-client #2713
• Add auto deps version update workflow #2707 (#2717)

⬆️ Update dependencies

• 💚 use ci-container for update deps cron job #2744 (#2748)
• update ubuntu version for devcontainer #2736 (#2750)
• ⬆️ update versions/BUF_VERSION #2703 (#2704)

🤝 Contributor

• docs: add highpon as a contributor for code #2721

[vdaas-ci]

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