Deprecate tests for old APIs

tests/ServerTest.php

@@ -57,6 +57,9 @@ public function testDisableCAVerificationReturnsSelf(): void
  );
  }
 
+ /**
+ * @deprecated
+ */
  public function testGenerateRegisterRequest(): void
  {
  $req = $this->server->generateRegisterRequest();
@@ -76,6 +79,9 @@ public function testGenerateRegisterRequest(): void
  );
  }
 
+ /**
+ * @deprecated
+ */
  public function testGenerateSignRequest(): void
  {
  $kh = \random_bytes(16);
@@ -104,6 +110,9 @@ public function testGenerateSignRequest(): void
  );
  }
 
+ /**
+ * @deprecated
+ */
  public function testGenerateSignRequests(): void
  {
  $registrations = [