Update eleven-moons-shave.md

Modified the change type from 'patch' to 'minor'. There is no change to the public API and no feature added, but the change does require an update to the emulator. We feel that a patch may go unnoticed.

Author: MarkDuckworth

.changeset/eleven-moons-shave.md

@@ -1,6 +1,6 @@
 ---
-"@firebase/firestore": patch
-"@firebase/webchannel-wrapper": patch
+"@firebase/firestore": minor
+"@firebase/webchannel-wrapper": minor
 ---
 
 Enable encodeInitMessageHeaders. Requires Cloud Firestore Emulator v1.14.4 or newer.