feat(brew-bump): add check for cleanup step

test/scripts/steps-lib.bats

@@ -7,40 +7,40 @@ source "$SCRIPT"
 
 @test "is_env_var_set should return 1 if env var is not set" {
   run is_env_var_set "ASDF_TEST_SET"
-  [ "$output" = 1 ]
+  [ "$status" = 1 ]
 }
 
 @test "is_env_var_set should return 0 if env var is set" {
   ASDF_TEST_SET="test" run is_env_var_set "ASDF_TEST_SET"
-  [ "$output" = 0 ]
+  [ "$status" = 0 ]
 }
 
 @test "directory_exists should 1 if directory doesn't exist" {
   run directory_exists "/tmp/asdfasdfasdf"
-  [ "$output" = 1 ]
+  [ "$status" = 1 ]
 }
 
 @test "directory_exists should 0 if directory exists" {
   run directory_exists "$(pwd)"
-  [ "$output" = 0 ]
+  [ "$status" = 0 ]
 }
 
 @test "file_exists should 1 if file doesn't exist" {
   run file_exists "hello-asfd.sh"
-  [ "$output" = 1 ]
+  [ "$status" = 1 ]
 }
 
 @test "file_exists should 0 if file exists" {
   run file_exists "$SCRIPT"
-  [ "$output" = 0 ]
+  [ "$status" = 0 ]
 }
 
 @test "is_executable should 1 if file isn't executable" {
   run is_executable "hello-asfd.sh"
-  [ "$output" = 1 ]
+  [ "$status" = 1 ]
 }
 
 @test "is_executable should 0 if file is executable" {
   run is_executable "$SCRIPT"
-  [ "$output" = 0 ]
+  [ "$status" = 0 ]
 }