update keyring before package update

bvogelzang · bvogelzang · commit 8fded124c14f · 2020-12-16T16:48:24.000-06:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -21,6 +21,7 @@ install:
   - gem --version
 
   # update all packages on the system
+  - c:/msys64/usr/bin/pacman -S archlinux-keyring
   - c:/msys64/usr/bin/pacman -Syu --noconfirm
 
   # prevent freetds to link to wrong ws2_32 lib on i686-w64-mingw32
