Merge pull request etcd-io#17694 from henrybear327/fix/golangci-confi…

…g-run-skip-files

Replace run.skip-files with issues.exclude-files in golangci config

tools/.golangci.yaml

@@ -1,14 +1,15 @@
 ---
 run:
   timeout: 30m
-  skip-files: [^zz_generated.*]
 issues:
   max-same-issues: 0
   # Excluding configuration per-path, per-linter, per-text and per-source
   exclude-rules:
     # exclude ineffassing linter for generated files for conversion
     - path: conversion\.go
       linters: [ineffassign]
+  exclude-files:
+    - ^zz_generated.*
 linters:
   disable-all: true
   enable: # please keep this alphabetized