Preliminary 9.14 support

Curently using ghc-9.14.0.20250819

Author: erikd

cabal.project

@@ -7,5 +7,11 @@ tests: True
 -- Show full test output
 test-show-details: direct
 
-allow-newer:
-  , *:base
+if impl (ghc >= 9.14)
+  allow-newer:
+    , deepseq:base
+    , primitive:base
+    , splitmix:base
+    , tagged:template-haskell
+    , vector:base
+    , vector-stream:base