v1.34.8 release

What's Changed

• [release-1.34] chore: add CVE-2026-46600 and CVE-2026-56852 to .trivyignore by @k8s-infra-cherrypick-robot in #3271
• [release-1.34] fix: GHSA-hrxh-6v49-42gf by @andyzhangx in #3286
• [release-1.34] chore: upgrade azcopy to v10.32.6 to fix CVEs and reset .trivyignore by @andyzhangx in #3292
• Cherry pick of #3296 on release-1.34 by @andyzhangx in #3305
• [release-1.34] fix: fail fast on account limit for fixed storage account by @k8s-infra-cherrypick-robot in #3316
• doc: cut v1.34.8 release by @andyzhangx in #3321

Full Changelog: v1.34.7...v1.34.8