cabal.project: allow-newer base/template-haskell bounds

Work around stale upper bounds (cborg, serialise, with-utf8 and the
base / template-haskell catch-alls) so the solver can build against the
project's GHC.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: jasagredo

cabal.project

@@ -78,6 +78,11 @@ package plutus-scripts-bench
 allow-newer:
   , io-sim:time
   , io-classes:time
+  , cborg:base
+  , serialise:base
+  , with-utf8:base
+  , *:base
+  , *:template-haskell
 
 -- IMPORTANT
 -- Do NOT add more source-repository-package stanzas here unless they are strictly