Bump external/SPIRV-Tools from `5ed21eb` to `bfc3a15`

[dependabot[bot]]

Bumps external/SPIRV-Tools from 5ed21eb to bfc3a15.

Commits

• bfc3a15 build(deps): bump the github-actions group across 1 directory with 3 updates ...
• 57a42e6 spirv-val: Separate Location check for tess patch (#5654)
• dd4b663 Prepare release v2024.2 (#5651)
• be6fb2a build(deps): bump the github-actions group across 1 directory with 4 updates ...
• dadb301 Add SPIRV_TOOLS_EXPORT to public C++ API (#5591)
• 53c0736 A fix to support of SPV_QCOM_image_processing2 (#5646)
• 67a3ed6 opt: add GroupNonUniformPartitionedNV capability to trim pass (#5648)
• 2904985 spirv-val: Add Vulkan check for Rect Dim in OpTypeImage (#5644)
• 02470f6 Validate duplicate decorations and execution modes (#5641)
• 6761288 Validator: Support SPV_NV_raw_access_chains (#5568)
• Additional commits viewable in compare view

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