Improve bbox formatting #2273

Job	Run time
Lint and Unit test	4m 33s
Build aarch64-apple-darwin	5m 31s
Build debian-x86_64	5m 22s
Build x86_64-apple-darwin	3m 12s
Build x86_64-pc-windows-msvc	4m 12s
Build x86_64-unknown-linux-gnu	1m 2s
Build and test docker images	3m 46s
Test on macOS-latest	5m 35s
Test postgis:11-3.0-alpine sslmode=disable	3m 13s
Test on windows-latest	1m 39s
Test postgis:14-3.3-alpine sslmode=disable	3m 38s
Test on ubuntu-latest	57s
Test postgis:15-3.3 sslmode=require	8m 5s
Package	1m 17s
CI Finished	7s
	52m 9s

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