[#390] Fix clippy warning

Author: elfenpiff

iceoryx2-pal/posix/src/windows/select.rs

@@ -30,7 +30,7 @@ pub unsafe fn select(
     let now = Instant::now();
 
     // infinite blocking means on windows 10 years
-    let mut timeout_alt = if timeout.is_null() {
+    let timeout_alt = if timeout.is_null() {
         timeval {
             tv_sec: 3600 * 24 * 365,
             tv_usec: 0,