Add issued time to JWT claims in test cases

This ensures that the JWT claims set contains an issued time, which is necessary for some verifications. The additional issued time makes the test cases more comprehensive and accurate.

sts-token-auth/src/test/java/de/adorsys/sts/tokenauth/JWTClaimsSetVerifierWithLogsTest.java

@@ -37,7 +37,7 @@ void verify() {
     @Test
     public void testVerify_throwsBadJWTException_whenJWTIsExpired() {
         Date exp = new Date(System.currentTimeMillis() - 60000);
-        JWTClaimsSet claimsSet = new JWTClaimsSet.Builder().expirationTime(exp).build();
+        JWTClaimsSet claimsSet = new JWTClaimsSet.Builder().expirationTime(exp).issueTime(new Date()).build();
         when(clock.instant()).thenReturn(Instant.now());
         assertThrows(BadJWTException.class, () -> {
             underTest.verify(claimsSet, null);
@@ -47,7 +47,7 @@ public void testVerify_throwsBadJWTException_whenJWTIsExpired() {
     @Test
     public void testVerify_throwsBadJWTException_whenJWTIsNotBeforeNow() {
         Date nbf = new Date(System.currentTimeMillis() + 61000);
-        JWTClaimsSet claimsSet = new JWTClaimsSet.Builder().notBeforeTime(nbf).build();
+        JWTClaimsSet claimsSet = new JWTClaimsSet.Builder().notBeforeTime(nbf).issueTime(new Date()).build();
         when(clock.instant()).thenReturn(Instant.now());
         assertThrows(BadJWTException.class, () -> {
             underTest.verify(claimsSet, null);