chore: update and relax revive naming rules (#38615)

- enable `skip-initialism-name-checks`, so names like `sessionUid` are
allowed
- replace removed `skip-package-name-checks` option with new
`package-naming` with fitting rules for gitea
- drop dead exclusion paths

modules/templates/util_json.go

@@ -9,11 +9,11 @@ import (
 	"gitea.dev/modules/json"
 )
 
-type JsonUtils struct{} //nolint:revive // variable naming triggers on Json, wants JSON
+type JsonUtils struct{}
 
 var jsonUtils = JsonUtils{}
 
-func NewJsonUtils() *JsonUtils { //nolint:revive // variable naming triggers on Json, wants JSON
+func NewJsonUtils() *JsonUtils {
 	return &jsonUtils
 }