Core: tests: add dep hspec, {StorePath,Derivation}: fx import

>    No changes, but 1.1.7 should have been a major version bump due to dropping the Test.Hspec re-export.
https://hackage.haskell.org/package/tasty-hspec-1.2/changelog

M  hnix-store-core/tests/Hash.hs
M  hnix-store-core/tests/NarFormat.hs

Author: Anton-Latukha

hnix-store-core/hnix-store-core.cabal

@@ -109,6 +109,7 @@ test-suite format-tests
     , process
     , tasty
     , tasty-golden
+    , hspec
     , tasty-hspec
     , tasty-hunit
     , tasty-quickcheck

hnix-store-core/tests/Hash.hs

@@ -14,7 +14,7 @@ import qualified Data.ByteString.Base64.Lazy as B64
 import qualified Data.ByteString.Lazy        as BSL
 import           Data.Text                   (Text)
 
-import           Test.Tasty.Hspec
+import           Test.Hspec
 import           Test.Tasty.QuickCheck
 
 import           System.Nix.Hash

hnix-store-core/tests/NarFormat.hs

@@ -37,7 +37,7 @@ import qualified System.IO.Temp                   as Temp
 import qualified System.Posix.Process             as Unix
 import qualified System.Process                   as P
 import           Test.Tasty                       as T
-import           Test.Tasty.Hspec
+import           Test.Hspec
 import qualified Test.Tasty.HUnit                 as HU
 import           Test.Tasty.QuickCheck
 import qualified Text.Printf                      as Printf