Update python wrapper version to 0.3.0 #581

Job	Run time
Run checks (ubuntu-latest)	32s
Run checks (macos-latest)	1m 4s
Run checks (windows-latest)	2m 7s
Run tests (ubuntu-latest)	3m 23s
Build library (Android) (aarch64-linux-android)	10m 42s
Run tests (macos-latest)	4m 22s
Build library (Android) (armv7-linux-androideabi)	13m 0s
Build library (iOS) (aarch64-apple-ios)	5m 37s
Run tests (windows-latest)	7m 16s
Build library (linux-aarch64, ubuntu-latest, libaries_askar.so, aarch64-unknown-linux-gnu, true)	3m 39s
Build library (Android) (i686-linux-android)	10m 33s
Build library (iOS) (aarch64-apple-ios-sim)	4m 29s
Build library (linux-x86_64, ubuntu-latest, libaries_askar.so, x86_64-unknown-linux-gnu, true)	4m 55s
Build library (Android) (x86_64-linux-android)	7m 2s
Build library (iOS) (x86_64-apple-ios)	5m 10s
Build library (darwin-universal, macos-latest, libaries_askar.dylib, darwin-universal, beta)	6m 22s
Build library (windows-x86_64, windows-latest, aries_askar.dll, x86_64-pc-windows-msvc)	8m 52s
Create iOS xcframework	1m 10s
Build and test JavaScript wrapper	1m 28s
Build and test Python wrapper (linux-aarch64, 3.8)	18s
Build and test Python wrapper (linux-x86_64, 3.8)	22s
Build and test Python wrapper (darwin-universal, 3.8)	28s
Build and test Python wrapper (windows-x86_64, 3.8)	52s
Successful build	1s
Create library (Android)	25s
Create iOS and Android release assets	0s
	1h 44m 9s

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