Port httpserver extension to DuckDB v1.5.4. #477

Job	Run time
Build extension binaries / Generate matrix	4s
Build extension binaries / Linux (linux_arm64, ubuntu-24.04-arm, arm64-linux-release, arm64-linux-release, false, false)	5m 39s
Build extension binaries / Linux (linux_amd64, ubuntu-24.04, x64-linux-release, x64-linux-release, true, false)	5m 55s
Build extension binaries / Windows (windows_amd64, windows-latest, x64-windows-static-release, x64-windows-static-release, t...	23m 43s
Build extension binaries / MacOS (osx_arm64, arm64, arm64-osx-release, arm64-osx-release, true, false)	15m 49s
Build extension binaries / DuckDB-Wasm (wasm_eh, wasm32-emscripten, x64-linux, false, false)	11m 33s
Build extension binaries / Windows (windows_amd64_mingw, windows-latest, x64-mingw-static, x64-mingw-static, true, false)	41m 44s
Build extension binaries / MacOS (osx_amd64, x86_64, x64-osx-release, arm64-osx-release, false, false)	15m 58s
Build extension binaries / DuckDB-Wasm (wasm_threads, wasm32-emscripten, x64-linux, false, false)	10m 46s
Build extension binaries / DuckDB-Wasm (wasm_mvp, wasm32-emscripten, x64-linux, true, false)	10m 35s
	2h 21m 46s

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