Filter out skip_worktree statuses #47

Job	Run time
Create container: xenial	1s
Create container: bionic	2s
Create container: focal	3s
Create container: docurium	1s
Create container: bionic-x86	3s
Create container: bionic-arm32	2s
Create container: bionic-arm64	3s
Create container: centos7	6s
Create container: centos8	2s
Generate documentation	28s
Build: Linux (Xenial, GCC, OpenSSL)	25s
Build: Linux (Xenial, GCC, mbedTLS)	28s
Build: Linux (Xenial, Clang, OpenSSL)	24s
Build: Linux (Xenial, Clang, mbedTLS)	29s
Build: macOS	25m 36s
Build: Windows (amd64, Visual Studio)	3m 2s
Build: Windows (x86, Visual Studio)	2m 30s
Build: Windows (amd64, mingw)	1m 15s
Build: Windows (x86, mingw)	56s
Build: Sanitizer (Memory)	30s
Build: Sanitizer (UndefinedBehavior)	35s
Build: Sanitizer (Thread)	30s
Build: Linux (SHA256, Xenial, Clang, OpenSSL)	25s
Build: macOS (SHA256)	26m 13s
Build: Windows (SHA256, amd64, Visual Studio)	1m 34s
Test results	5s
	1h 5m 48s

Provide feedback