chore: update homebrew formula to v1.17.3

Author: github-actions[bot]

Formula/nanocoder.rb

@@ -1,8 +1,8 @@
 class Nanocoder < Formula
   desc "Local-first CLI coding agent with multi-provider support"
   homepage "https://github.com/Nano-Collective/nanocoder"
-  url "https://registry.npmjs.org/@nanocollective/nanocoder/-/nanocoder-1.17.2.tgz"
-  sha256 "9875f1cd40040752728cd456ffe5cb987d37da9c612eeaac4ead5fc1e34b3309"
+  url "https://registry.npmjs.org/@nanocollective/nanocoder/-/nanocoder-1.17.3.tgz"
+  sha256 "4cf4bc9a3c4adbeb47a547f4c8c68d23244ae2b553db8d70494e98811547e939"
   license "MIT"
 
   depends_on "node@20"