Fix jwt token creation deprecations

src/main/java/com/spotify/github/v3/clients/JwtTokenIssuer.java

@@ -21,7 +21,6 @@
 package com.spotify.github.v3.clients;
 
 import io.jsonwebtoken.Jwts;
-import io.jsonwebtoken.SignatureAlgorithm;
 
 import java.security.KeyFactory;
 import java.security.NoSuchAlgorithmException;
@@ -34,7 +33,6 @@
 /** The helper Jwt token issuer. */
 public class JwtTokenIssuer {
 
-  private static final SignatureAlgorithm SIGNATURE_ALGORITHM = SignatureAlgorithm.RS256;
   private static final long TOKEN_TTL = 600000;
 
   private final PrivateKey signingKey;
@@ -69,12 +67,14 @@ public static JwtTokenIssuer fromPrivateKey(final byte[] privateKey)
    */
   public String getToken(final Integer appId) {
     return Jwts.builder()
-        .setId("github-auth")
-        .setSubject("authenticating via private key")
-        .setIssuer(String.valueOf(appId))
-        .signWith(signingKey, SIGNATURE_ALGORITHM)
-        .setExpiration(new Date(System.currentTimeMillis() + TOKEN_TTL))
-        .setIssuedAt(new Date())
+        .claims()
+        .id("github-auth")
+        .subject("authenticating via private key")
+        .issuer(String.valueOf(appId))
+        .issuedAt(new Date())
+        .expiration(new Date(System.currentTimeMillis() + TOKEN_TTL))
+        .and()
+        .signWith(signingKey, Jwts.SIG.RS256)
         .compact();
   }
 }

src/main/java/com/spotify/github/v3/repos/RepositoryBase.java

@@ -42,6 +42,10 @@ public interface RepositoryBase extends UpdateTracking {
   @Nullable
   Integer id();
 
+  /** Node id */
+  @Nullable
+  String nodeId();
+
   /** Name */
   @Nullable
   String name();

src/test/java/com/spotify/github/v3/repos/RepositoryTest.java

@@ -45,6 +45,7 @@ public void setUp() throws Exception {
   public void testDeserialization() throws IOException {
     final Repository repository = Json.create().fromJson(fixture, Repository.class);
     assertThat(repository.id(), is(1296269));
+    assertThat(repository.nodeId(), is("MDEwOlJlcG9zaXRvcnkxMjk2MjY5"));
     assertUser(repository.owner());
     assertThat(repository.name(), is("Hello-World"));
     assertThat(repository.fullName(), is(repository.owner().login() + "/Hello-World"));

src/test/resources/com/spotify/github/v3/repos/repository.json

@@ -1,5 +1,6 @@
 {
   "id": 1296269,
+  "node_id": "MDEwOlJlcG9zaXRvcnkxMjk2MjY5",
   "owner": {
     "login": "octocat",
     "id": 1,