rockspec: bump http to 1.7.0

Since `http` module support tls, we need to update its dependency here.

Part of #26

Author: themilchenko

metrics-export-role-scm-1.rockspec

@@ -16,7 +16,7 @@ description = {
 dependencies = {
     "lua >= 5.1",
     "tarantool >= 3.0.2",
-    "http >= 1.5.0",
+    "http >= 1.7.0",
 }
 
 build = {