Switch @primer/octicons import to npm in deno.json

Updated the @primer/octicons import in deno.json to use the npm registry instead of esm.sh. This change ensures consistent dependency management via npm for this package.

Author: Mqxx

deno.json

@@ -51,6 +51,6 @@
   "imports": {
     "@actions/core": "npm:@actions/core@^1.11.1",
     "@std/yaml": "jsr:@std/yaml@^1.0.9",
-    "@primer/octicons": "https://esm.sh/@primer/octicons@^19"
+    "@primer/octicons": "npm:@primer/octicons@^19"
   }
 }