fix: extract executable from wasm tools component target

Resolve BCR build failure where wasm_tools_component was being passed as
Target instead of FilesToRunProvider. The toolchain returns a Target but
ctx.actions.run() requires the executable to be extracted.

Error: parameter 'executable' got value of type 'Target', want 'File, string, or FilesToRunProvider'

Author: avrabe

tools/bazel_helpers/wasm_tools_actions.bzl

@@ -26,10 +26,13 @@ def wasm_tools_action(ctx, operation, **kwargs):
     # Get the WASM tools component from toolchain
     wasm_tools_toolchain = ctx.toolchains["@rules_wasm_component//toolchains:wasm_tools_component_toolchain_type"]
     wasm_tools_info = wasm_tools_toolchain.wasm_tools_info
-    wasm_tools_component = wasm_tools_info.wasm_tools_component
+    wasm_tools_component_target = wasm_tools_info.wasm_tools_component
 
-    if not wasm_tools_component:
+    if not wasm_tools_component_target:
         fail("WASM Tools Integration Component not available in toolchain")
+        
+    # Extract executable from target
+    wasm_tools_component = wasm_tools_component_target.files_to_run
 
     if operation == "validate":
         return _validate_action(ctx, wasm_tools_component, **kwargs)