CI: update lint complexity thresholds (#3608)

.golangci.yml

@@ -184,7 +184,7 @@ linters:
 
     maintidx:
       # raise this after refactoring
-      under: 15
+      under: 18
 
     misspell:
       locale: US
@@ -210,7 +210,7 @@ linters:
         - name: cognitive-complexity
           arguments:
             # lower this after refactoring
-            - 119
+            - 113
         - name: comment-spacings
           disabled: true
         - name: confusing-results
@@ -235,8 +235,8 @@ linters:
         - name: function-length
           arguments:
             # lower this after refactoring
-            - 111
-            - 238
+            - 87
+            - 198
         - name: get-return
           disabled: true
         - name: increment-decrement
@@ -294,9 +294,7 @@ linters:
         - -ST1003
         - -ST1005
         - -ST1012
-        - -ST1022
         - -QF1003
-        - -QF1008
         - -QF1012
 
     wsl: