Fix invalid escape sequences in test_http

Author: soxofaan

tests/util/test_http.py

@@ -20,11 +20,11 @@ def test_requests_with_retry(caplog):
 
     assert caplog.messages == [
         "Starting new HTTPS connection (1): example.test:443",
-        Matches("Incremented Retry.*Retry\(total=1"),
-        Matches("Retrying.*total=1.*Failed to (establish a new connection|resolve)"),
+        Matches(r"Incremented Retry.*Retry\(total=1"),
+        Matches(r"Retrying.*total=1.*Failed to (establish a new connection|resolve)"),
         "Starting new HTTPS connection (2): example.test:443",
-        Matches("Incremented Retry.*Retry\(total=0"),
-        Matches("Retrying.*total=0.*Failed to (establish a new connection|resolve)"),
+        Matches(r"Incremented Retry.*Retry\(total=0"),
+        Matches(r"Retrying.*total=0.*Failed to (establish a new connection|resolve)"),
         "Starting new HTTPS connection (3): example.test:443",
     ]