Update version to v1.4.181 and commit

Author: github-actions[bot]

nix/pkgs/fabric/gomod2nix.toml

@@ -35,8 +35,8 @@ schema = 3
     version = "v1.3.3"
     hash = "sha256-jv7ZshpSd7FZzKKN6hqlUgiR8C3y85zNIS/hq7g76Ho="
   [mod."github.com/anthropics/anthropic-sdk-go"]
-    version = "v0.2.0-alpha.11"
-    hash = "sha256-0wl62e6AVhDY3KkoYrfAHFtBrwNC4nzqrR55iyCJlwk="
+    version = "v0.2.0-beta.3"
+    hash = "sha256-QnR7MWiLPVii9jy7rjrZfg1UDgXCXkc2latdzFurrFM="
   [mod."github.com/araddon/dateparse"]
     version = "v0.0.0-20210429162001-6b43995a97de"
     hash = "sha256-UuX84naeRGMsFOgIgRoBHG5sNy1CzBkWPKmd6VbLwFw="

nix/pkgs/fabric/version.nix

@@ -1 +1 @@
-"1.4.180"
+"1.4.181"

version.go

@@ -1,3 +1,3 @@
 package main
 
-var version = "v1.4.180"
+var version = "v1.4.181"