[gdk-pixbuf/rst-man] ci: Use Meson 0.56

[Emmanuele Bassi <ebassi src gnome org>]

commit 1e5f51d2350d5a987a1268c373b711a691c282e0
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri May 13 02:18:17 2022 +0100

    ci: Use Meson 0.56

 .gitlab/ci/fedora.Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab/ci/fedora.Dockerfile b/.gitlab/ci/fedora.Dockerfile
index 6aea2bccb..76890fac1 100644
--- a/.gitlab/ci/fedora.Dockerfile
+++ b/.gitlab/ci/fedora.Dockerfile
@@ -35,7 +35,7 @@ RUN dnf -y install \
         which \
  && dnf clean all
 
-RUN pip3 install meson==0.56.0
+RUN pip3 install meson==0.56
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}