Add method for updating check run by ID

Author: mrginglymus

src/main/java/org/kohsuke/github/GHRepository.java

@@ -1958,6 +1958,19 @@ public GHCommitStatus createCommitStatus(String sha1, GHCommitState state, Strin
         return new GHCheckRunBuilder(this, name, headSHA);
     }
 
+    /**
+     * Updates an existing check run.
+     *
+     * @param checkId
+     *            the existing checkId
+     * @return a builder which you should customize, then call {@link GHCheckRunBuilder#create}
+     */
+    @Preview
+    @Deprecated
+    public @NonNull GHCheckRunBuilder updateCheckRun(long checkId) {
+        return new GHCheckRunBuilder(this, checkId);
+    }
+
     /**
      * Lists repository events.
      *