Another windows naming fix

Author: dzbarsky

.github/workflows/build_release_windows_amd64.bat

@@ -1,4 +1,4 @@
 call bazel build //:for_windows_x86_64
 
-move bazel-out\windows_x86_64-opt\bin\toml2json.exe toml2json_windows_x86_64.exe
+move bazel-out\windows_x86_64-opt\bin\toml2json.exe toml2json_windows_amd64.exe
 certutil -hashfile toml2json_windows_amd64.exe SHA256 > SHA256_windows_amd64.txt