[rust] Use apple-flat-package crate to extract PKG files #6270

Job	Run time
Check	5m 31s
Java	0s
.NET	0s
Python	0s
JavaScript	0s
Ruby	0s
Rust / Build / Build	4m 1s
Rust / Tests (ubuntu) / Tests (ubuntu)	9m 55s
Rust / Tests (macos) / Tests (macos)	6m 41s
Rust / Tests (windows) / Tests (windows)	4m 39s
Rust / Windows Stable	3m 45s
Rust / Windows Debug	3m 0s
Rust / Linux Stable	2m 38s
Rust / Linux Debug	2m 34s
Rust / MacOS Debug	3m 31s
Rust / MacOS Stable	4m 9s
Rust / Release Binaries	0s
	50m 24s

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