sources: update rustls version to 0.23.40

Signed-off-by: Jingwei Wang <jweiw@amazon.com>

Author: sky1122

sources/Cargo.lock

@@ -141,13 +141,11 @@ mod tests {
     }
 
     #[test]
-    fn fips_enabled_defaults_to_false() {
-        // On non-FIPS systems (or when /proc/sys/crypto/fips_enabled is missing/0),
-        // fips_enabled() should return false
+    fn fips_enabled_reads_system_state() {
+        // Verifies the function runs without error and returns
+        // a value consistent with the host's FIPS configuration
         let enabled = fips_enabled();
-        assert!(
-            !enabled,
-            "Expected fips_enabled() to be false on non-FIPS system"
-        );
+        let raw = std::fs::read_to_string("/proc/sys/crypto/fips_enabled").unwrap_or_default();
+        assert_eq!(enabled, raw.trim() == "1");
     }
 }