bump version to v0.19.2 #20

Job	Run time
Test (x86_64-unknown-linux-gnu, ubuntu-latest, --features=native-tls)	6m 27s
Test (x86_64-unknown-linux-gnu, ubuntu-latest, --no-default-features --features=native-tls,online...	6m 41s
Test (x86_64-apple-darwin, macos-latest, --features=native-tls)	10m 49s
Test (x86_64-pc-windows-msvc, windows-latest, --features=native-tls)	9m 53s
Test (x86_64-unknown-linux-musl, ubuntu-latest, true)	9m 35s
Test (aarch64-unknown-linux-musl, ubuntu-latest, true, -- --test-threads=4)	9m 32s
Test (arm-unknown-linux-gnueabihf, ubuntu-latest, true, -- --test-threads=4)	9m 26s
Deploy (ubuntu-latest, aarch64-unknown-linux-musl, aarch64-linux-gnu, true)	5m 13s
Deploy (ubuntu-latest, arm-unknown-linux-gnueabihf, arm-linux-gnueabihf, true)	5m 0s
Deploy (ubuntu-latest, x86_64-unknown-linux-musl, true)	5m 34s
Deploy (macos-latest, x86_64-apple-darwin, --features=native-tls)	5m 27s
Deploy (windows-latest, x86_64-pc-windows-msvc, --features=native-tls, -C target-feature=+crt-sta...	7m 8s
	1h 30m 45s

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