REGTEST: make the "table in peers" test require v2.0

And the second test also requires openssl otherwise it fails as seen
here : https://travis-ci.com/haproxy/haproxy/jobs/198126488
diff --git a/reg-tests/peers/s_basic_sync_wo_stkt_backend.vtc b/reg-tests/peers/s_basic_sync_wo_stkt_backend.vtc
index 15dc206..f75c65c 100644
--- a/reg-tests/peers/s_basic_sync_wo_stkt_backend.vtc
+++ b/reg-tests/peers/s_basic_sync_wo_stkt_backend.vtc
@@ -1,6 +1,8 @@
 vtest "Basic test for peers protocol stick-table declared in peers sections"
 feature ignore_unknown_macro
 
+#REQUIRE_VERSION=2.0
+
 haproxy h1 -arg "-L A" -conf {
     defaults
         timeout client  1s