scripts: tools-versions: use nrfutil device 2.20.0

nrfutil device 2.19.0->2.20.0 (linux, darwin, win10).

Signed-off-by: Thomas Stilwell <thomas.stilwell@nordicsemi.no>
Signed-off-by: Piotr Kosycarz <piotr.kosycarz@nordicsemi.no>

Author: thst-nordic

scripts/tools-versions-darwin.yml

@@ -31,4 +31,4 @@ pip:
 nrfutil:
   version: 8.1.1
   subcommands:
-    device: 2.19.0
+    device: 2.20.0

scripts/tools-versions-linux.yml

@@ -32,4 +32,4 @@ pip:
 nrfutil:
   version: 8.1.1
   subcommands:
-    device: 2.19.0
+    device: 2.20.0

scripts/tools-versions-win10.yml

@@ -30,4 +30,4 @@ pip:
 nrfutil:
   version: 8.1.1
   subcommands:
-    device: 2.19.0
+    device: 2.20.0