Perform ThinLTO on x86_64-pc-windows-msvc dist builder

Author: Zoxc

src/ci/github-actions/jobs.yml

@@ -581,6 +581,7 @@ auto:
         --enable-full-tools
         --enable-profiler
         --set rust.codegen-units=1
+        --set rust.lto=thin
       SCRIPT: python x.py build --set rust.debug=true opt-dist && PGO_HOST=x86_64-pc-windows-msvc ./build/x86_64-pc-windows-msvc/stage0-tools-bin/opt-dist windows-ci -- python x.py dist bootstrap --include-default-paths
       DIST_REQUIRE_ALL_TOOLS: 1
       CODEGEN_BACKENDS: llvm,cranelift