Increased timeout for meson tests to 600sec to make tests work on Darwin

10 jobs for darwin-sys-paths in 6 minutes and 7 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #5850263
gst-macos-10.15
meson macos

00:03:11

passed #5850260
meson-mingw-w64-build

00:04:34

manual #5850264
docker windows 1809 allowed to fail manual
meson msys2
passed #5850258
meson-shared-build

00:04:37

passed #5850259
meson-static-build

00:05:08

passed #5850261
docker windows 1809
meson vs2017 amd64

00:01:20

passed #5850262
docker windows 1809
meson vs2017 x86

00:01:22

passed #5850257
mingw-build

00:05:43

passed #5850255
shared-build

00:06:07

passed #5850256
static-build

00:05:55