[PATCH] cirrus.yml: Fix the MSYS2 task

[Thomas Huth]

The MSYS2 task in the Cirrus-CI is currently failing with error messages
like this:

 warning: database file for 'ucrt64' does not exist (use '-Sy' to download)
 :: Starting core system upgrade...
  there is nothing to do
 :: Starting full system upgrade...
 error: failed to prepare transaction (could not find database)

Seems like it can be fixed by switching to a newer release and by refreshing
the database one more time after changing the /etc/pacman.conf file.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 Here's a successful run after applying this patch:
 https://cirrus-ci.com/build/4918461810868224

 .cirrus.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index f53c519447..f4bf49b704 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -67,7 +67,7 @@ windows_msys2_task:
     CIRRUS_SHELL: powershell
     MSYS: winsymlinks:nativestrict
     MSYSTEM: MINGW64
-    MSYS2_URL: 
https://github.com/msys2/msys2-installer/releases/download/2021-01-05/msys2-base-x86_64-20210105.sfx.exe
+    MSYS2_URL: 
https://github.com/msys2/msys2-installer/releases/download/2021-04-19/msys2-base-x86_64-20210419.sfx.exe
     MSYS2_FINGERPRINT: 0
     MSYS2_PACKAGES: "
       diffutils git grep make pkg-config sed
@@ -130,7 +130,7 @@ windows_msys2_task:
         taskkill /F /FI "MODULES eq msys-2.0.dll"
         tasklist
         C:\tools\msys64\usr\bin\bash.exe -lc "mv -f /etc/pacman.conf.pacnew 
/etc/pacman.conf || true"
-        C:\tools\msys64\usr\bin\bash.exe -lc "pacman --noconfirm -Suu 
--overwrite=*"
+        C:\tools\msys64\usr\bin\bash.exe -lc "pacman --noconfirm -Syuu 
--overwrite=*"
         Write-Output "Core install time taken: 
$((Get-Date).Subtract($start_time))"
         $start_time = Get-Date
 
-- 
2.27.0