Replace all instances of fmt.Errorf(%v) with fmt.Errorf(%w) (#21551)

Found using
`find . -type f -name '*.go' -print -exec vim {} -c
':%s/fmt\.Errorf(\(.*\)%v\(.*\)err/fmt.Errorf(\1%w\2err/g' -c ':wq' \;`

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

models/auth/token.go

@@ -86,7 +86,7 @@ func init() {
 			var err error
 			successfulAccessTokenCache, err = lru.New(setting.SuccessfulTokensCacheSize)
 			if err != nil {
-				return fmt.Errorf("unable to allocate AccessToken cache: %v", err)
+				return fmt.Errorf("unable to allocate AccessToken cache: %w", err)
 			}
 		} else {
 			successfulAccessTokenCache = nil