Disable revive and contextcheck linters for browser code

See #4107 for contextcheck

Revive also doesn't make as much sense for code that is not supposed to
be used directly by third parties, especially given the size of the API.

.golangci.yml

@@ -26,6 +26,10 @@ issues:
        - funlen
        - lll
        - forcetypeassert
+   - path: js\/modules\/k6\/browser\/.*\.go
+     linters:
+       - revive
+       - contextcheck
    - path: js\/modules\/k6\/html\/.*\.go
      text: "exported: exported "
      linters: