Add changelog entries from botocore

.changes/next-release/api-change-imagebuilder-35987.json

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+{
+  "type": "api-change",
+  "category": "``imagebuilder``",
+  "description": "[``botocore``] This release adds the Image Workflows feature to give more flexibility and control over the image building and testing process."
+}

.changes/next-release/api-change-location-51420.json

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+{
+  "type": "api-change",
+  "category": "``location``",
+  "description": "[``botocore``] This release 1)  adds sub-municipality field in Places API for searching and getting places information, and 2) allows optimizing route calculation based on expected arrival time."
+}

.changes/next-release/api-change-logs-77574.json

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+{
+  "type": "api-change",
+  "category": "``logs``",
+  "description": "[``botocore``] This release introduces the StartLiveTail API to tail ingested logs in near real time."
+}