ci: Add gobject-introspection dep

This is a bug elsewhere, but for now
it is blocking our CI:

https://bugzilla.redhat.com/show_bug.cgi?id=2412451

Signed-off-by: Cole Robinson <crobinso@redhat.com>

.github/workflows/ci.yml

@@ -27,6 +27,7 @@ jobs:
       run: |
         dnf install -y \
           gettext \
+          gobject-introspection \
           python3-devel \
           python3-docutils \
           meson

.github/workflows/test-against-libvirt-git.yml

@@ -26,6 +26,7 @@ jobs:
 
         dnf install -y \
           gettext \
+          gobject-introspection \
           python3-devel \
           python3-docutils \
           meson

.packit.yaml

@@ -8,6 +8,7 @@ specfile_path: build/virt-manager.spec
 
 srpm_build_deps:
   - gettext
+  - gobject-introspection
   - python3-devel
   - python3-docutils
   - meson