vpx: bump libvpx requirement to 1.5.0

Was released in Nov 2015.
22 jobs for vpx-version-bump-and-meson-fix in 68 minutes and 44 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Preparation
passed #513855
gst indent

00:00:43

passed #513854
manifest

00:00:50

 
  Build
passed #513864
build cerbero android universal

00:12:19

passed #513865
build cerbero cross win32

00:10:24

passed #513866
build cerbero cross win64

00:05:29

passed #513863
build cerbero fedora x86_64

00:08:07

manual #513868
gst-ios-12.2 allowed to fail manual
build cerbero ios universal
passed #513867
gst-macos-10.14
build cerbero macos x86_64

00:09:28

passed #513856
build fedora x86_64

00:07:42

passed #513862
1607 windows docker
build msys2

00:11:53

passed #513857
build nodebug fedora x86_64

00:07:08

passed #513858
build static fedora x86_64

00:15:03

passed #513859
build static nodebug fedora x86_64

00:09:44

passed #513860
docker windows 1607
build vs2017 amd64

00:09:50

passed #513861
docker windows 1607
build vs2017 x86

00:09:44

 
  Test
passed #513869
check fedora

00:05:22

passed #513870
integration testsuites fedora

00:45:09

passed #513872
valgrind bad

00:13:37

passed #513873
valgrind ges

00:09:54

passed #513871
valgrind good

00:12:43

 
  Integrate
passed #513874
android universal examples

00:07:36

passed #513875
documentation

00:04:43