Fix golangci-lint config

There was a typo and non-existent config option in the linter config.

Because we don't verify the config it's easy to miss it.

Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>

.golangci.yml

@@ -23,6 +23,5 @@ linters-settings:
         disabled: true
 
 issues:
-  deadline: 2m
-  exlude-dirs:
+  exclude-dirs:
     - vendor