Add versions 7.4.2 and 6.8.5

Author: tomcallahan

.ci/bwcVersions

@@ -34,6 +34,7 @@ BWC_VERSION:
   - "6.8.2"
   - "6.8.3"
   - "6.8.4"
+  - "6.8.5"
   - "7.0.0"
   - "7.0.1"
   - "7.1.0"
@@ -45,4 +46,5 @@ BWC_VERSION:
   - "7.3.2"
   - "7.4.0"
   - "7.4.1"
+  - "7.4.2"
   - "7.5.0"

server/src/main/java/org/elasticsearch/Version.java

@@ -109,6 +109,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_6_8_2 = new Version(6080299, org.apache.lucene.util.Version.LUCENE_7_7_0);
     public static final Version V_6_8_3 = new Version(6080399, org.apache.lucene.util.Version.LUCENE_7_7_0);
     public static final Version V_6_8_4 = new Version(6080499, org.apache.lucene.util.Version.LUCENE_7_7_2);
+    public static final Version V_6_8_5 = new Version(6080599, org.apache.lucene.util.Version.LUCENE_7_7_2);
     public static final Version V_7_0_0 = new Version(7000099, org.apache.lucene.util.Version.LUCENE_8_0_0);
     public static final Version V_7_0_1 = new Version(7000199, org.apache.lucene.util.Version.LUCENE_8_0_0);
     public static final Version V_7_1_0 = new Version(7010099, org.apache.lucene.util.Version.LUCENE_8_0_0);
@@ -120,6 +121,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_7_3_2 = new Version(7030299, org.apache.lucene.util.Version.LUCENE_8_1_0);
     public static final Version V_7_4_0 = new Version(7040099, org.apache.lucene.util.Version.LUCENE_8_2_0);
     public static final Version V_7_4_1 = new Version(7040199, org.apache.lucene.util.Version.LUCENE_8_2_0);
+    public static final Version V_7_4_2 = new Version(7040299, org.apache.lucene.util.Version.LUCENE_8_2_0);
     public static final Version V_7_5_0 = new Version(7050099, org.apache.lucene.util.Version.LUCENE_8_2_0);
     public static final Version V_7_6_0 = new Version(7060099, org.apache.lucene.util.Version.LUCENE_8_3_0);
     public static final Version CURRENT = V_7_6_0;