[gnome-runtime-images] Add 42 runtime images

[Jordan Petridis <jpetridis src gnome org>]

commit 3e98bbfa5fe735f3e5866a86abb2a36d87cccc8c
Author: Jordan Petridis <jordan centricular com>
Date:   Sat Apr 2 02:11:52 2022 +0300

    Add 42 runtime images

 .gitlab-ci.yml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f30005c..08048b5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -137,6 +137,17 @@ flat-manager-client:
     - when: 'manual'
       allow_failure: true
 
+.vars_42:
+  variables:
+    BRANCH: "42"
+    FD_BRANCH: "21.08"
+    LLVM_VERSION: "12"
+  rules:
+    - if: '$REBUILD_STABLE'
+      when: 'always'
+    - when: 'manual'
+      allow_failure: true
+
 gnome:nightly:
   stage: 'runtimes'
   extends: ['.sdk_template', '.vars_nightly']
@@ -148,3 +159,7 @@ gnome:40:
 gnome:41:
   stage: 'runtimes'
   extends: ['.sdk_template', '.vars_41']
+
+gnome:42:
+  stage: 'runtimes'
+  extends: ['.sdk_template', '.vars_41']
\ No newline at end of file