fix grcov CI workflow #2165

Job	Run time
Lint and Unit test	4m 47s
Build aarch64-apple-darwin	8m 20s
Build debian-x86_64	8m 31s
Build and test docker images	6m 5s
Build x86_64-apple-darwin	2m 56s
Build x86_64-pc-windows-msvc	5m 35s
Build x86_64-unknown-linux-gnu	1m 50s
Test on macOS-latest	6m 14s
Test postgis:11-3.0-alpine sslmode=disable	5m 22s
Test on windows-latest	2m 19s
Test postgis:14-3.3-alpine sslmode=disable	6m 31s
Test on ubuntu-latest	54s
Test postgis:15-3.3 sslmode=require	6m 52s
Package	1m 15s
CI Finished	3s
	1h 7m 34s

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