chore(deps): update rstest requirement from 0.18 to 0.19 #686

Job	Run time
Run checks (macos-latest)	1m 11s
Run checks (windows-latest)	2m 15s
Run checks (ubuntu-latest)	38s
Build library (iOS) (aarch64-apple-ios)	1m 39s
Build library (Android) (aarch64-linux-android)	4m 42s
Build library (iOS) (aarch64-apple-ios-sim)	1m 21s
Build library (Android) (armv7-linux-androideabi)	4m 41s
Build library (iOS) (x86_64-apple-ios)	1m 4s
Build library (Android) (i686-linux-android)	4m 44s
Build library (Android) (x86_64-linux-android)	4m 44s
Build library (linux-aarch64, ubuntu-latest, libindy_vdr.so, aarch64-unknown-linux-gnu, true)	3m 9s
Run Test Suite	5m 16s
Build library (linux-x86_64, ubuntu-latest, libindy_vdr.so, x86_64-unknown-linux-gnu, true)	3m 0s
Build library (darwin-universal, macos-latest, libindy_vdr.dylib, darwin-universal, beta)	2m 51s
Build library (windows-x86_64, windows-latest, indy_vdr.dll, x86_64-pc-windows-msvc)	4m 16s
Create library (Android)	9s
Create iOS xcframework	0s
Create iOS and Android release assets	0s
Build and test Python wrapper	0s
Build and Test Go wrapper	0s
Build and Test JavaScript wrapper	0s
	45m 40s

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