RPM packaging: separate RPM and Docker architecture, fix creating Pas… #235

Job	Run time
C++ tests on Linux	1m 42s
C++ tests on macOS	4m 2s
Apache2 tests on Linux	2m 2s
Nginx tests on Linux	3m 1s
Apache2 tests on macOS	2m 42s
Nginx tests on macOS	3m 31s
Nginx dynamic module tests on Linux	1m 20s
Node.js tests on Linux	21s
Nginx dynamic module tests on macOS	1m 31s
Ruby tests on Linux	1m 13s
Node.js tests on macOS	35s
Ruby tests on macOS	1m 12s
Passenger Standalone tests on Linux	4m 5s
Passenger Standalone tests on macOS	5m 15s
Homebrew packaging tests	6m 14s
Source packaging tests	25s
	39m 11s

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