remove version locks from cabal file

blog-proxy.cabal

@@ -15,15 +15,15 @@ executable blog-proxy
   default-language: Haskell2010
 
   build-depends:
-    base ^>= 4.18.2.0,
-    bytestring ^>= 0.11.5.0,
-    text ^>= 2.0.0,
-    split ^>= 0.2.5,
-    containers ^>= 0.6.7,
-    filepath ^>= 1.4.300.0,
-    directory ^>= 1.3.8.0,
-    aeson ^>= 2.1.2.0,
-    http-types ^>= 0.12.4,
-    http-conduit ^>= 2.3.9.0,
-    wai ^>= 3.2.4,
-    warp ^>= 3.3.31,
+    base,
+    bytestring,
+    text,
+    split,
+    containers,
+    filepath,
+    directory,
+    aeson,
+    http-types,
+    http-conduit,
+    wai,
+    warp,

src/TemplateLoader.hs

@@ -1,11 +1,11 @@
 module TemplateLoader (loadTemplates) where
 
 import Data.Bool (bool)
-import System.FilePath ((</>))
-import System.Directory (listDirectory, doesDirectoryExist)
 import qualified Data.ByteString as BS
 import qualified Data.Text as T
 import Data.Text (Text)
+import System.FilePath ((</>))
+import System.Directory (listDirectory, doesDirectoryExist)
 
 import TemplatePage (PageTemplate, parsePage, isUntemplated)