Update CHANGELOG.md for #1205

Author: changelogbot

CHANGELOG.md

@@ -3,6 +3,7 @@
 ENHANCEMENTS:
 
 * cloudflare: make it clearer when we hit a server error and to retry later ([#1207](https://github.com/cloudflare/cloudflare-go/issues/1207))
+* devices_policy: Add new exclude_office_ips field to policy ([#1205](https://github.com/cloudflare/cloudflare-go/issues/1205))
 * dlp_profile: Use int rather than uint for allowed_match_count field ([#1200](https://github.com/cloudflare/cloudflare-go/issues/1200))
 
 BUG FIXES: