[spago] add either, version bounds

spago.lock

@@ -3,7 +3,8 @@ workspace:
     address-rfc2821:
       path: ./
       dependencies:
-        - ffi-simple
+        - either
+        - ffi-simple: ">=0.5.1 <0.6.0"
         - prelude: ">=6.0.1 <7.0.0"
       test_dependencies:
         - debug

spago.yaml

@@ -6,7 +6,8 @@ workspace:
 package:
   name: address-rfc2821
   dependencies:
-    - ffi-simple
+    - either: ">=6.1.0 <7.0.0"
+    - ffi-simple: ">=0.5.1 <0.6.0"
     - prelude: ">=6.0.1 <7.0.0"
   test:
     main: Test.Main
@@ -39,5 +40,5 @@ package:
       # The place where the Registry will fetch the source from.
       # This is optional since you might want to release the code without
       # publishing to the Registry, which is what this is needed for.
-    #location:
-    #  url: https://gitlab.iscpif.fr/gargantext/purescript-address-rfc2821.git
+      #location:
+      #  url: https://gitlab.iscpif.fr/gargantext/purescript-address-rfc2821.git