Add build-4.0.yml workflow for branch-4.0 prebuilt and docker image

[hello-stephen]

Summary

• Add build-4.0.yml to automate prebuilt thirdparty artifacts and Docker image for Apache Doris branch-4.0, following the same pattern as existing build-3.1.yml but with the update-docker job from build.yml (master)
• Fix download failures for packages whose upstream mirrors are unavailable from GitHub Actions runners:
  • lzo-2.10.tar.gz: fossies.org returns 410 Gone for this file; switch to official oberhumer.com mirror
  • libuuid-1.0.3.tar.gz: nchc.dl.sourceforge.net (Taiwan mirror) is blocked from GitHub Actions; use the main SourceForge redirector instead
• Change prerelease job runner from macos-14 to ubuntu-latest to avoid macOS runner network restrictions that cause silent empty-file downloads
• Fix gh release upload --clobber race-condition that returns exit 1 ("release not found") when overwriting an existing asset, even though the upload succeeds; replace with explicit delete-then-upload
• Sync build.yml (master workflow) improvements: add force_build input for workflow_dispatch, switch DORIS_TOOLCHAIN to clang

Key differences from build-3.1.yml

	build-3.1.yml	build-4.0.yml
Tracked branch	branch-3.1	branch-4.0
Release tag	automation-3.1	automation-4.0
update-docker job	✗	✓ (same as master)
Docker image tags	N/A	build-env-ldb-toolchain-4.0-latest
ldb_toolchain	v0.18	v0.25
llvm	llvm@16	llvm@20
prerelease runner	macos-14	ubuntu-latest

Test plan

• Prerelease job: successfully creates automation-4.0 release, downloads sources, detects thirdparty changes
• Build (Linux): thirdparty compiled and prebuilt artifact uploaded
• Build (macOS-arm64): thirdparty compiled and prebuilt artifact uploaded
• Update Docker Image: Dockerfile pulled from branch-4.0, all three patches applied successfully, Docker image built (push requires apache Docker Hub credentials)
• Build (macOS-x86_64): validated in CI but macos-13 runner availability on GitHub is currently limited

🤖 Generated with Claude Code