[extensions-web/ci/letsencrypt] ci: bump Fedora version to 34 to bypass Let's Encrypt certs failure

[Yuri Konotopov <ykonotopov src gnome org>]

commit 46d6a539bfeb16f53a745c5d52500281dbcef562
Author: Yuri Konotopov <ykonotopov gnome org>
Date:   Fri Oct 8 20:11:03 2021 +0400

    ci: bump Fedora version to 34 to bypass Let's Encrypt certs failure

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4d4d314..5461afe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 test:
-  image: 'registry.fedoraproject.org/fedora:30'
+  image: 'registry.fedoraproject.org/fedora:34'
   stage: test
   variables:
     STORAGE_DRIVER: 'vfs'