fixed hmac unit test after signature base string was fixed in underlying code

openid-connect-server/src/test/java/org/mitre/jwt/JwtTest.java

@@ -232,7 +232,7 @@ public class JwtTest {
 			 * 
 			 * Expected signature: iGBPJj47S5q_HAhSoQqAdcS6A_1CFj3zrLaImqNbt9E
 			 */
-			String jwtString = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjEzMDA4MTkzODAsImlzcyI6ImpvZSIsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ.iGBPJj47S5q_HAhSoQqAdcS6A_1CFj3zrLaImqNbt9E";
+			String jwtString = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjEzMDA4MTkzODAsImlzcyI6ImpvZSIsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ.p-63Jzz7mgi3H4hvW6MFB7lmPRZjhsL666MYkmpX33Y";
 	
 			boolean valid = signer.verify(jwtString);