More gh actions fixes (#1151)

* copy .env file before production release

* copy .env file into assets folder

* bump version number

pubspec.yaml

@@ -6,7 +6,7 @@ description: Learn a language while texting your friends.
 # Pangea#
 publish_to: none
 # On version bump also increase the build number for F-Droid
-version: 1.23.12+3571
+version: 1.23.13+3572
 
 environment:
   sdk: ">=3.0.0 <4.0.0"