syncthing test update due to golang 1.23

- tls.X509KeyPair() func changed and now populates
  returned cert.Leaf where before it was left nil

  https://pkg.go.dev/crypto/tls#X509KeyPair

Signed-off-by: Tesshu Flower <[email protected]>

Author: tesshuflower

controllers/mover/syncthing/syncthing_test.go

@@ -1894,7 +1894,8 @@ var _ = Describe("Syncthing utils", func() {
 			cert, err := tls.X509KeyPair(certPEM.Bytes(), certKeyPEM.Bytes())
 			Expect(err).ToNot(HaveOccurred())
 			Expect(cert).ToNot(BeNil())
-			Expect(cert.Leaf).To(BeNil())
+			// cert.Leaf is now populated with golang 1.23 (https://pkg.go.dev/crypto/tls#X509KeyPair)
+			Expect(cert.Leaf).NotTo(BeNil())
 			Expect(cert.Certificate[0]).ToNot(BeNil())
 			Expect(cert.PrivateKey).ToNot(BeNil())
 		})