feat: proper windows support

tests/binary_test/run_env_binary.sh

@@ -2,7 +2,23 @@
 set -euo pipefail
 
 binary="$1"
-output="$(${binary})"
+
+run_launcher() {
+  local launcher="$1"
+  shift
+  if [[ ${launcher} == *.cmd ]]; then
+    local command
+    printf -v command '"%s"' "${launcher}"
+    for arg in "$@"; do
+      printf -v command '%s "%s"' "${command}" "${arg}"
+    done
+    cmd.exe /c "${command}" | tr -d '\r'
+    return 0
+  fi
+  "${launcher}" "$@"
+}
+
+output="$(run_launcher "${binary}")"
 
 if [[ ${output} != "from-dotenv" ]]; then
   echo "Expected .env value from entry-point directory, got: ${output}" >&2