fix(account): typo on init command (#819)

Author: QuentinBrosse

cmd/scw/testdata/test-all-usage-account-ssh-key-init-usage.stderr.golden

@@ -1,4 +1,4 @@
-Initiliaze SSH key.
+Initialize SSH key.
 
 USAGE:
   scw account ssh-key init

cmd/scw/testdata/test-all-usage-account-ssh-key-usage.stderr.golden

@@ -4,7 +4,7 @@ USAGE:
   scw account ssh-key <command>
 
 AVAILABLE COMMANDS:
-  init        Initiliaze SSH key
+  init        Initialize SSH key
 
 FLAGS:
   -h, --help   help for ssh-key