server: Fix TestLogRotation error message in Go 1.24

The embedded structure is now also part of the log message. The failure
from the tests is the following:

--- FAIL: TestLogRotation (0.00s)
    --- FAIL: TestLogRotation/invalid_logger_config (0.00s)
        config_test.go:868: test "invalid logger config", expected
        error: invalid log rotation config: json: cannot unmarshal
               bool into Go struct field logRotationConfig.maxsize
               of type int,
        got: invalid log rotation config: json: cannot unmarshal
             bool into Go struct field logRotationConfig.Logger.maxsize
             of type int
FAIL

Signed-off-by: Ivan Valdes <[email protected]>

Author: ivanvc

server/embed/config_test.go

@@ -843,7 +843,7 @@ func TestLogRotation(t *testing.T) {
 			logOutputs:        []string{"/tmp/path"},
 			logRotationConfig: `{"maxsize": true}`,
 			wantErr:           true,
-			wantErrMsg:        errors.New("invalid log rotation config: json: cannot unmarshal bool into Go struct field logRotationConfig.maxsize of type int"),
+			wantErrMsg:        errors.New("invalid log rotation config: json: cannot unmarshal bool into Go struct field logRotationConfig.Logger.maxsize of type int"),
 		},
 		{
 			name:              "improperly formatted logger config",