Roll external/spirv-headers/ 7d500c4d7..4f7b471f1 (1 commit) (#5625)

KhronosGroup/SPIRV-Headers@7d500c4...4f7b471

$ git log 7d500c4d7..4f7b471f1 --date=short --no-merges --format='%ad %ae %s'
2024-03-27 121976986+aejjehint Update bit reservations for loop controsl and memory operands (#424)

Created with:
  roll-dep external/spirv-headers

Co-authored-by: GitHub Actions[bot] <>

DEPS

@@ -13,7 +13,7 @@ vars = {
   'protobuf_revision': 'v21.12',
 
   're2_revision': '6598a8ecd57724c8c7d43b2fca8eb9f9969ce57c',
-  'spirv_headers_revision': '7d500c4d75ae3fbd37e1d5a20008ca9c8ee3c860',
+  'spirv_headers_revision': '4f7b471f1a66b6d06462cd4ba57628cc0cd087d7',
 }
 
 deps = {