need a platform-tools actually in the nixpkgs you use

I tried a bunch of versions of nixpkgs so here's a bunch of versions of
platformTools.  Probaably should be a parameter...

android.nix

@@ -2,7 +2,9 @@
 let
   androidComposition = androidenv.composeAndroidPackages {
     toolsVersion = "26.1.1";
-    platformToolsVersion = "31.0.3";
+    platformToolsVersion = "33.0.2";
+    # platformToolsVersion = "31.0.3";
+    # platformToolsVersion = "31.0.2";
     buildToolsVersions = [ buildToolsVersion ];
     includeEmulator = false;
     emulatorVersion = "30.3.4";