[fix #275]: runtime command error for entering container isn't translated

* [fix #275]: missing error string

* Fix: Wrong branch in workflow file

---------

Co-authored-by: Mateus Melchiades <matbme@duck.com>

Author: kbdharun

.github/workflows/go-pr.yml

@@ -1,8 +1,8 @@
 name: Go (PR)
 
-on:    
+on:
   pull_request_target:
-    branches: [ "v2" ]
+    branches: [ "main" ]
     types: [opened, synchronize, reopened]
 
 jobs:

locales/en.yml

@@ -15,6 +15,7 @@ runtimeCommand:
   description: "Work with the specified subsystem, accessing the package manager and
     environment."
   error:
+    enteringContainer: "An error occurred while entering the container: %s"
     noPackageSpecified: "No packages specified."
     cantAccessPkgManager: "An error occurred while accessing the package manager:
       %s"