yetus/golangcilint: disable new musttag checker

Signed-off-by: eriknordmark <erik@zededa.com>

pkg/pillar/.golangci.yml

@@ -42,6 +42,7 @@ linters:
     - cyclop            # Raises warnings even for relatively simple functions
     - ireturn           # Returning interfaces is a common practise for constructors in defensive programming
     - exhaustive        # Complains even if struct has default branch
+    - musttag           # pillar uses implicit tags for all structs
 
 issues:
   max-issues-per-linter: 0