[GH Action] Update release tags and commit SHAs for arabica (#2118)

* [automated GH action] update latest release tags & commit sha (arabica)

* Apply suggestions from code review

* Apply suggestions from code review

---------

Co-authored-by: jcstein <jcstein@users.noreply.github.com>
Co-authored-by: Josh Stein <46639943+jcstein@users.noreply.github.com>

Author: celestia-bot

.vitepress/constants/arabica_versions.js

@@ -1,6 +1,6 @@
 const arabicaVersions = Object.freeze({
-  "app-latest-tag": "v4.0.2-arabica",
-  "app-latest-sha": "4fc26c1e3f1aa590da31f8f8c8400357807f6556",
+  "app-latest-tag": "v4.0.3-arabica",
+  "app-latest-sha": "0905cb633d293e3c7f351883dcfe8083cbea520a",
   "node-latest-tag": "v0.23.0-arabica",
   "node-latest-sha": "b814f44afb5bde01b3714c4f21fe34203d90405d",
 });