test(connlib): downgrade error (#10123)

We can run into this when multiple DNS queries all need to be sent to
the same Gateway and we don't have a connection yet. Hence, downgrade
this error to a debug log.

rust/connlib/snownet/src/node.rs

@@ -2435,7 +2435,7 @@ where
         RId: Copy,
     {
         let Some(socket) = self.socket() else {
-            tracing::error!("Cannot initiate WG session without a socket");
+            tracing::debug!("Cannot initiate WG session without a socket");
             return;
         };
 

rust/connlib/tunnel/proptest-regressions/tests.txt

@@ -194,3 +194,4 @@ cc 613cba6cf1b34d88c6733b1272aae83d4f71abfdbe66d2109f890ff7d3bf6692
 cc d88ebc9e70446d9f8b602032d1d68e72175630d1073ec9410810bccac31d49cf
 cc 0f7aea8d78b70ac939b68b97d93206c077744f677a473336d05b1217b6e042c4
 cc a065d273b793538b61647caf61edce567957b435c50b781dc5710f0a60f22efe
+cc 680d723f43269da420b01eb4db6c65f5c222e71e391889e72a403c775041c7da