Add dependency version ranges

Also remove stack.yaml since it isn't used anymore. and adding libraries
to the snapshots doesn't seem to be as easy as I hoped.

graphql.cabal

@@ -20,6 +20,7 @@ build-type:     Simple
 extra-source-files:
     CHANGELOG.md
     README.md
+tested-with: GHC == 8.10.4
 
 source-repository head
   type: git
@@ -57,19 +58,19 @@ library
       src
   ghc-options: -Wall
   build-depends:
-      aeson
+      aeson >= 1.5.6 && < 1.6
     , base >= 4.7 && < 5
-    , conduit
-    , containers
-    , exceptions
-    , hspec-expectations
-    , megaparsec
-    , parser-combinators
-    , scientific
-    , text
-    , transformers
-    , unordered-containers
-    , vector
+    , conduit >= 1.3.4 && < 1.4
+    , containers >= 0.6.2 && < 0.7
+    , exceptions >= 0.10.4 && < 0.11
+    , hspec-expectations >= 0.8.2 && < 0.9
+    , megaparsec >= 9.0.1 && < 9.1
+    , parser-combinators >= 1.3.0 && < 1.4
+    , scientific >= 0.3.7 && < 0.4
+    , text >= 1.2.4 && < 1.3
+    , transformers >= 0.5.6 && < 0.6
+    , unordered-containers >= 0.2.14 && < 0.3
+    , vector >= 0.12.3 && < 0.13
   default-language: Haskell2010
 
 test-suite graphql-test
@@ -93,22 +94,16 @@ test-suite graphql-test
       tests
   ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
   build-depends:
-      QuickCheck
+      QuickCheck >= 2.14.1 && < 2.15
     , aeson
     , base >= 4.7 && < 5
     , conduit
-    , containers
-    , exceptions
     , graphql
-    , hspec
-    , hspec-expectations
-    , hspec-megaparsec
+    , hspec >= 2.8.2 && < 2.9
+    , hspec-megaparsec >= 2.2.0 && < 2.3
     , megaparsec
-    , parser-combinators
-    , raw-strings-qq
+    , raw-strings-qq >= 1.1 && < 1.2
     , scientific
     , text
-    , transformers
     , unordered-containers
-    , vector
   default-language: Haskell2010

stack.yaml

@@ -1,9 +0,0 @@
-resolver: lts-17.10
-
-packages:
-- .
-
-extra-deps: []
-flags: {}
-
-pvp-bounds: lower