Downgrade nightly CI until rustc is fixed #2210

Job	Run time
Build and test docker images	4m 5s
Lint and Unit test	2m 37s
Build aarch64-apple-darwin	3m 18s
Build debian-x86_64	5m 18s
Build x86_64-apple-darwin	1m 56s
Build x86_64-pc-windows-msvc	2m 44s
Build x86_64-unknown-linux-gnu	1m 59s
Test postgis:11-3.0-alpine sslmode=disable	5m 40s
Test postgis:14-3.3-alpine sslmode=disable	3m 21s
Test on macOS-latest	8m 33s
Test postgis:15-3.3 sslmode=require	5m 40s
Test on windows-latest	2m 15s
Test on ubuntu-latest	57s
Package	50s
CI Finished	1s
	49m 14s

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