Add id-token: write permission for NPM OIDC publishing

Change-type: patch
Signed-off-by: Kyle Harding <kyle@balena.io>

Author: klutchell

.github/workflows/flowzone.yml

@@ -18,7 +18,7 @@ permissions:
   checks: none
   contents: read
   deployments: none
-  id-token: none
+  id-token: write
   issues: none
   discussions: none
   pages: none