fix: external for lib

Author: nitzano

.changeset/red-apes-repeat.md

@@ -0,0 +1,5 @@
+---
+"prisma-openapi": patch
+---
+
+fix external

esbuild.config.mjs

@@ -7,4 +7,6 @@ await build({
 	platform: 'node',
 	target: 'node22',
 	outfile: 'dist/lib/index.js',
+	external: ['@prisma/*'],
+	packages: 'external',
 });