[fractal/fractal-next] CI: install clang for pages build

[Julian Sparber <jsparber src gnome org>]

commit 910134568980a14b531855af59ee315721c7cc4d
Author: Julian Sparber <julian sparber net>
Date:   Thu Nov 25 14:36:12 2021 +0100

    CI: install clang for pages build

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ba4ffe99..c0caf21b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -54,7 +54,7 @@ pages:
   script:
     # generate the docs
     - dnf update -y
-    - dnf install -y openssl-devel cmake gtk-update-icon-cache llvm pipewire-devel
+    - dnf install -y openssl-devel cmake gtk-update-icon-cache llvm pipewire-devel clang
     - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal 
--default-toolchain nightly
     - source $HOME/.cargo/env
     - meson _build --prefix=/usr -Dskip-cargo-build=true