[librsvg/librsvg-2.48] ci: fix the build after the image changes [1]

[Federico Mena Quintero <federico src gnome org>]

commit a3fe66b934da50eaf4e12c5bdcfc54f87e1f82da
Author: Jordan Petridis <jpetridis gnome org>
Date:   Fri Jun 5 15:43:49 2020 +0300

    ci: fix the build after the image changes [1]
    
    I have no idea why autoconf is broken like that [2]... but seems to
    be the case so add sudo everywhere
    
    ```
    $ ../autogen.sh --enable-gtk-doc --enable-vala
    /usr/bin/autoconf: line 36: /dev/null: Permission denied
    /usr/bin/autoconf: line 58: /dev/null: Permission denied
    /usr/bin/autoconf: line 62: /dev/null: Permission denied
    /usr/bin/autoconf: line 86: /dev/null: Permission denied
    /usr/bin/autoconf: line 144: /dev/null: Permission denied
    /usr/bin/autoconf: line 182: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 199: /dev/null: Permission denied
    /usr/bin/autoconf: line 255: /dev/null: Permission denied
    sh: /dev/null: Permission denied
    sh: /dev/null: Permission denied
    ```
    
    [1] https://gitlab.gnome.org/GNOME/librsvg-oci-images/-/merge_requests/9
    [2] https://gitlab.gnome.org/GNOME/librsvg/-/jobs/754227

 .gitlab-ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ab4c4e99..22047493 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -41,9 +41,9 @@ stages:
     - rustc --version && cargo --version
     - mkdir -p _build
     - cd _build
-    - ../autogen.sh --enable-gtk-doc --enable-vala
-    - make
-    - make check
+    - sudo ../autogen.sh --enable-gtk-doc --enable-vala
+    - sudo make
+    - sudo make check
 
   artifacts:
     when: 'always'