net-p2p/cardano-node: Unbreak build under Poudriere.

Reported by:	pkg-fallout

net-p2p/cardano-node/files/patch-cabal.project

@@ -0,0 +1,20 @@
+cabal-install ignores the --offline flag for custom package repositories, which
+makes the build fail under poudriere
+
+--- cabal.project.orig	2022-11-05 10:41:42 UTC
++++ cabal.project
+@@ -1,14 +1,3 @@
+--- Custom repository for cardano haskell packages, see CONTRIBUTING for more
+-repository cardano-haskell-packages
+-  url: https://input-output-hk.github.io/cardano-haskell-packages
+-  secure: True
+-  root-keys:
+-    3e0cce471cf09815f930210f7827266fd09045445d65923e6d0238a6cd15126f
+-    443abb7fb497a134c343faf52f0b659bd7999bc06b7f63fa76dc99d631f9bea1
+-    a86a1f6ce86c449c46666bda44268677abf29b5b2d2eb5ec7af903ec2f117a82
+-    bcec67e8e99cabfa7764d75ad9b158d72bfacf70ca1d0ec8bc6b4406d1bf8413
+-    c00aae8461a256275598500ea0e187588c35a5d5d7454fb57eac18d9edb86a56
+-    d4a35cd3121aa00d18544bb0ac01c3e1691d618f462c46129271bccf39f7e8ee
+ 
+ -- See CONTRIBUTING for information about these, including some Nix commands
+ -- you need to run if you change them