Use system installed certificates by default and accept neo4j+ssc connections #271

Job	Run time
Check clippy	52s
Check formatting	17s
Check clippy (--all-features)	54s
Run integration tests (5.21)	2m 33s
Run integration tests (5.21, --all-features)	2m 44s
Compile on MSRV	55s
Run integration tests (5.20)	2m 35s
Compile on MSRV (--all-features)	56s
Validate MSRV and minimal dependency versions (Cargo.lock.msrv, MSRV)	1m 31s
Run integration tests (5.20, --all-features)	2m 50s
Validate MSRV and minimal dependency versions (Cargo.lock.min, minimal dependency versions)	20s
Run unit tests (windows-latest, stable)	3m 12s
Run integration tests (5.19)	2m 33s
Run unit tests (windows-latest, stable, --all-features)	3m 10s
Run integration tests (5.19, --all-features)	2m 38s
Run unit tests (macOS-latest, stable)	59s
Run integration tests (4.4)	2m 38s
Run unit tests (macOS-latest, stable, --all-features)	58s
Run integration tests (4.4, --all-features)	2m 36s
Run unit tests (ubuntu-latest, stable)	45s
Run unit tests (ubuntu-latest, stable, --all-features)	46s
Release	0s
	36m 42s

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