Vulkan/SPIR-V: update to 1.4.357.0; glslang 16.5.0;

[Rutpiv]

Testing the changes

• I tested the changes in this PR: briefly

Local build testing

• I built this PR locally for my native architecture, (x86_64-glibc)
• I built this PR locally for these architectures using specific masterdirs:
  • x86_64-musl
  • i686
• I built this PR locally for these architectures (crossbuilds):
  • aarch64
  • aarch64-musl
  • armv7l
  • armv7l-musl
  • armv6l
  • armv6l-musl

[Rutpiv]

Opening as a draft while the SPIRV-Tools side is still pending; the remaining work is tracked in KhronosGroup/SPIRV-Tools/issues/6814, which has the context on why the bump is held.

Marking ready for review once that lands. Feedback on the templates in the meantime is welcome.

[Rutpiv]

Vulkan SDK 1.4.357.0

Coordinated bump of the Vulkan/SPIR-V stack, with the fixes it exposed.

SPIRV-Headers 1.4.350.1 -> 1.4.357.0,

SPIRV-Tools 2026.2 -> 2026.3.

SPIRV-LLVM-Translator{19,21,22} 19.1.18 -> 19.1.21, 21.1.7 -> 21.1.10, 22.1.2 -> 22.1.5.

• 21, 22: add -DLLVM_SPIRV_ENABLE_LIBSPIRV_DIS=ON. Upstream made --spirv-tools-dis opt-in after the 19.1.x branch, so 21 and 22 silently lost a feature 19 still has. SPIRV-Tools links statically, so no new runtime dependency.
• Drop clang${_llvm_ver}: no find_package(Clang) in the tree and the build never invokes clang, so -DClang_DIR was a no-op.
• Drop llvm${_llvm_ver}: LLVM binaries are only used under LLVM_SPIRV_INCLUDE_TESTS, which is off, and find_package(LLVM) resolves from llvm${_llvm_ver}-devel in the target root.
• LLVM_EXTERNAL_SPIRV_HEADERS_SOURCE_DIR uses ${XBPS_CROSS_BASE}/usr instead of a hardcoded /usr.

Vulkan-Headers 1.4.350.1 -> 1.4.357.0,

• license corrected to Apache-2.0 OR MIT; registry/parse_dependency.py, which is installed, is MIT only.

vulkan-loader, Vulkan-Tools, Vulkan-Utility-Libraries, Vulkan-ValidationLayers

• Drop the *_INSTALL_DIR args. Upstream either reads them only under a codegen option that is off, or from a subdirectory scope that never reaches the find_package calls. The cross toolchain's CMAKE_FIND_ROOT_PATH already covers it.
• Add libX11-devel (and libxcb-devel for VVL). The WSI options default on and their pkg_check_modules calls are REQUIRED; these were arriving transitively via libXrandr-devel.
• Drop dead hostmakedepends: python3 and glslang from Vulkan-Tools, pkg-config from Vulkan-Utility-Libraries.
• -DUPDATE_DEPS=OFF kept in VVL and load-bearing: unlike the other SDK repos, this one defaults it to ON.

zeux-volk 1.4.350.1 -> 1.4.357.0. Keeps -DVULKAN_HEADERS_INSTALL_DIR; volk actually reads it, unlike the four above.

glslang 16.3.0 -> 16.5.0.

• LDFLAGS="-Wl,-z,stack-size=2097152": musl sizes pthread stacks from PT_GNU_STACK and the test suite exhausts the default on x86_64-musl.
• CMAKE_BUILD_TYPE=None plus -DNDEBUG instead of Release, so the xbps flags are honored. It cannot simply be dropped; upstream forces Debug when empty.
• -DCMAKE_PREFIX_PATH added to both cmake calls: the custom do_configure bypasses the build style, so no cross toolchain file exists.
• Drop bison (glslang_tab.cpp is pre-generated) and gtest-devel (ALLOW_EXTERNAL_GTEST is off, so that suite was never built).

shaderc 2026.2 -> 2026.3.

• Add -DSHADERC_SKIP_COPYRIGHT_CHECK=ON: upstream registers check-copyright as an ALL target, linting the source tree on every build.