Convert build.rs from CRLF to LF line terminators

Author: musicinmybrain

build.rs

@@ -1,3 +1,3 @@
-fn main() {
-    pyo3_build_config::use_pyo3_cfgs();
-}
+fn main() {
+    pyo3_build_config::use_pyo3_cfgs();
+}