bump: to 1.0.0 alpha.2 (#13) #20

Job	Run time
Feature Matrix Tests (--features async-std-comp)	1m 26s
Test Suite (ubuntu-latest, stable)	1m 18s
Test Suite (ubuntu-latest, nightly)	1m 24s
Test Suite (windows-latest, stable)	1m 22s
Clippy	29s
Feature Matrix Tests	1m 29s
Security Audit	2m 42s
Test Suite (windows-latest, beta)	1m 20s
Feature Matrix Tests (--all-features)	1m 19s
Feature Matrix Tests (--features tokio-comp)	1m 21s
Documentation	32s
Code Coverage	4m 26s
Rustfmt	10s
Feature Matrix Tests (--features async-std-comp-native-tls)	1m 7s
Test Suite (macos-latest, stable)	1m 28s
Feature Matrix Tests (--features tokio-comp-native-tls)	1m 23s
Test Suite (ubuntu-latest, beta)	1m 22s
Feature Matrix Tests (--features migrate)	1m 27s
Test Suite (macos-latest, beta)	1m 19s
	27m 24s

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