Tests

Don't clone env on each call of Expr::eval #2356

Job	Run time
Check intra-documentation links	2m 10s
Test JNI(Android) bindings	21m 7s
Clippy (linter)	1m 8s
Build without default features	1m 18s
Run JS tests and publish alpha versions	21m 56s
Test Swift(iOS) bindings	3m 4s
Code formatting (rustfmt)	15s
Tests on ubuntu-latest	5m 18s
Code coverage in tests	22m 39s
Tests on windows-latest	12m 40s
Tests on macOS-latest	5m 39s
	1h 37m 14s

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