ci: fix freebsd build

Switching to:
* vmactions/[email protected] to fetch FreeBSD 13
* macos-10.15

It seems github systems are getting updates with later macos
versions (11.6.1) which don't have vboxmanage required to run VMs.

Signed-off-by: Dmitry Rogozhkin <[email protected]>

Author: dvrogozh

.github/workflows/freebsd.yml

@@ -12,7 +12,7 @@ on:
 
 jobs:
   freebsd:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     steps:
     - name: checkout libva
       uses: actions/checkout@v2
@@ -24,15 +24,15 @@ jobs:
       with:
         path: libva-utils
     - name: test
-      uses: vmactions/[email protected].3
+      uses: vmactions/[email protected].5
       with:
         prepare: |
           pkg install -y meson pkgconf libdrm libXext libXfixes wayland
           pkg install -y -x '^mesa($|-libs)'
         run: |
           set PREFIX="$PWD/_install"
           set LIBDIR="$PREFIX/lib"
-          setenv PKG_CONFIG_PATH $LIBDIR/pkgconfig
+          setenv PKG_CONFIG_PATH $LIBDIR/pkgconfig:$PREFIX/libdata/pkgconfig
           cd libva
           meson --prefix=$PREFIX --libdir=$LIBDIR _build
           meson compile -C _build