Swap error and failure GH commit status messages

When first committed, the error and failure messages were swapped, meaning the error message when commits can't be produced were associated with ECA status failures (which is a legitimate state).

src/main/java/org/eclipsefoundation/git/eca/namespace/GithubCommitStatuses.java

@@ -21,8 +21,8 @@ package org.eclipsefoundation.git.eca.namespace;
 public enum GithubCommitStatuses {
 
     SUCCESS("The author(s) of the pull request is covered by necessary legal agreements in order to proceed!"),
-    FAILURE("An unexpected error has occurred. Please contact webmaster@eclipse.org."),
-    ERROR("The author(s) of the pull request is not covered by necessary legal agreements in order to proceed."),
+    FAILURE("The author(s) of the pull request is not covered by necessary legal agreements in order to proceed."),
+    ERROR("An unexpected error has occurred. Please contact webmaster@eclipse.org."),
     PENDING("Eclipse Foundation Contributor Agreement validation is in progress.");
 
     private String message;