upip: add missing required package, fix code format

micropython/upip/manifest.py

@@ -1,6 +1,9 @@
-metadata(version="0.1.0", description="On-device PyPI package installer for network-capable boards")
+metadata(
+    version="0.1.0", description="On-device PyPI package installer for network-capable boards"
+)
 
 require("shutil")
 require("utarfile")
+require("urequests")
 
 package("upip", opt=3)