Add back allow-newers with a comment

Author: michaelpj

cabal.project

@@ -17,3 +17,9 @@ package lsp-types
   -- This makes a big difference here as lsp-types
   -- has very many independent modules 
   ghc-options: -j4
+
+if impl(ghc >= 9.7)
+  -- https://github.com/kcsongor/generic-lens/issues/158
+  allow-newer: 
+    generic-lens:text,
+    generic-lens-core:text,