feat(teleport): build teleport sysext with latest v15 and v16 versions

Author: b-abadie

.github/workflows/release.yaml

@@ -58,7 +58,9 @@ jobs:
               "teleport-13.4.26"
               "teleport-14.3.31"
               "teleport-15.4.18"
+              "teleport-15.4.19"
               "teleport-16.3.0"
+              "teleport-16.4.2"
           )
 
           for image in ${images[@]}; do