Fix golangci syntax error in run configuration

Signed-off-by: TaeyoungKwak <[email protected]>

.golangci.yml

@@ -1,8 +1,6 @@
+run:
+  concurrency: 2
 linters:
-  run:
-    concurrency: 2
-    skip-dirs:
-      - tests/composefiles
   enable-all: false
   disable-all: true
   enable: