fix: hide wrangler banner in secret list --format=json (#8103)

* hide wrangler banner by default in secret list

* tests

* not sure why this works

* fixup

* changeset

* Update .changeset/proud-days-study.md

Co-authored-by: Somhairle MacLeòid <[email protected]>

* show banner in tests

* lint!

---------

Co-authored-by: Somhairle MacLeòid <[email protected]>

Author: emily-shen

.changeset/proud-days-study.md

@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+fix: fix bug where `wrangler secret list --format=json` was printing the wrangler banner.