Fix SourceHut package CI dependencies

ober

27ec4c1839828302d80c4f67a8047ad8ecc99a9e

diff --git a/.build.yml b/.build.yml
index 7792771..cdbc98f 100644
--- a/.build.yml
+++ b/.build.yml
@@ -5,6 +5,8 @@ packages:
   - uuid-dev
   - zlib1g-dev
   - liblz4-dev
+  - libx11-dev
+  - file
   - git
   - curl
   - unzip