For release 10.3 (#1376)

# Description

Integrate `cardano-ledger` and `ouroboros-network` for node 10.3.

Author: jasagredo

README.md

@@ -16,7 +16,7 @@ index-state:
   -- Bump this if you need newer packages from Hackage
   , hackage.haskell.org 2025-03-18T17:41:11Z
   -- Bump this if you need newer packages from CHaP
-  , cardano-haskell-packages 2025-02-28T01:28:51Z
+  , cardano-haskell-packages 2025-03-22T21:55:03Z
 
 packages:
   ouroboros-consensus
@@ -66,3 +66,9 @@ if impl (ghc >= 9.12)
 
     -- https://github.com/fizruk/http-api-data/pull/146
     , http-api-data:base
+
+    , ouroboros-network-protocols:base
+    , ouroboros-network-framework:base
+    , ouroboros-network-api:base
+    , network-mux:base
+    , ouroboros-network:base

cabal.project

@@ -11,3 +11,4 @@ main_branches = master, main, develop
 new_fragment_template = file: new_fragment.${config:format}.j2
 output_file = CHANGELOG.${config:format}
 skip_fragments = README.*
+entry_title_template = {% if version %}{{ version }} -- {% endif %}{{ date.strftime('%Y-%m-%d') }}