add changeset

pan-domain-node/.changeset/README.md

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+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

pan-domain-node/.changeset/config.json

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+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "restricted",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

pan-domain-node/.changeset/ten-points-bow.md

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+---
+"@guardian/pan-domain-node": minor
+---
+
+Fix bug preventing cookie expiry from being correctly validated