ci: exclude errcheck in test files

.golangci.yml

@@ -173,10 +173,9 @@ linters-settings:
       - data any # generic data
       - n any # generic any
       - ch chan T # common generic channel name
-      - ch chan int # common channel name
-      - ch chan any # common channel name
-      - ch chan struct{} # common channel name
-      - wg sync.WaitGroup # common WaitGroup name
+      - ch chan int # common generic channel name
+      - ch chan any # common generic channel name
+      - wg sync.WaitGroup # common generic WaitGroup name
       - t time.Time # often used as a variable name
       - f func() # often used as a callback variable name
       - f func(T) # often used as a generic callback variable name
@@ -193,3 +192,4 @@ issues:
         - noctx
         - funlen
         - dupl
+        - errcheck