[extensions-web/barthalion/ci-shared-runners] Fix syntax error

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit edcc658c4f867c19ceb90a04c786e0a22d368d82
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Mon Jul 20 19:18:10 2020 +0200

    Fix syntax error

 openshift/docker/build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/openshift/docker/build.sh b/openshift/docker/build.sh
index ab3e91b..a9e3acc 100755
--- a/openshift/docker/build.sh
+++ b/openshift/docker/build.sh
@@ -44,7 +44,7 @@ make install
 ldconfig 
 
 cd /usr/src/xapian-bindings
-pip install Sphinx<2.0.0 
+pip install 'Sphinx<2.0.0 '
 ./configure --with-python3 
 make -j "$(nproc)" 
 make install