[wasi] enable WASMTIME_BACKTRACE_DETAILS (#104446)

Author: pavelsavara

src/libraries/sendtohelix-wasi.targets

@@ -71,6 +71,7 @@
     <HelixPreCommand Condition="'$(Scenario)' != ''" Include="export SCENARIO=$(Scenario)" />
     <HelixPreCommand Include="export XHARNESS_DISABLE_COLORED_OUTPUT=true" />
     <HelixPreCommand Include="export XHARNESS_LOG_WITH_TIMESTAMPS=true" />
+    <HelixPreCommand Include="export WASMTIME_BACKTRACE_DETAILS=1" />
     <HelixPreCommand Condition="'$(NeedsWasmtime)' == 'true'" Include="export PATH=$HELIX_CORRELATION_PAYLOAD/wasmtime:$PATH" />
     <HelixPreCommand Condition="'$(NeedsWasiSdk)' == 'true'" Include="export PATH=$HELIX_CORRELATION_PAYLOAD/wasi-sdk:$PATH" />
   </ItemGroup>
@@ -79,6 +80,7 @@
     <HelixPreCommand Condition="'$(Scenario)' != ''" Include="set SCENARIO=$(Scenario)" />
     <HelixPreCommand Include="set XHARNESS_DISABLE_COLORED_OUTPUT=true" />
     <HelixPreCommand Include="set XHARNESS_LOG_WITH_TIMESTAMPS=true" />
+    <HelixPreCommand Include="set WASMTIME_BACKTRACE_DETAILS=1" />
     <HelixPreCommand Condition="'$(NeedsWasmtime)' == 'true'" Include="set PATH=%HELIX_CORRELATION_PAYLOAD%\wasmtime%3B%PATH%" />
     <HelixPreCommand Condition="'$(NeedsWasiSdk)' == 'true'" Include="set PATH=%HELIX_CORRELATION_PAYLOAD%\wasi-sdk%3B%PATH%" />
   </ItemGroup>