ci: Disable two radeonsi jobs

The machine to which these boards are connected to is having trouble
keeping up when the rootfs are expanded. This is causing jobs to time
out and fail.

So as a mitigation measure reduce the load by disabling two of these
jobs until the root problem is solved.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8930>

.gitlab-ci/lava-gitlab-ci.yml

@@ -308,7 +308,7 @@ panfrost-g52-gles3:arm64:
   tags:
     - mesa-ci-aarch64-lava-baylibre
 
-radeonsi-stoney-gles2:amd64:
+.radeonsi-stoney-gles2:amd64:
   extends:
     - .lava-test:amd64
     - .radeonsi-rules
@@ -322,9 +322,9 @@ radeonsi-stoney-gles2:amd64:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-radeonsi-stoney-gles3:amd64:
+.radeonsi-stoney-gles3:amd64:
   extends:
-    - radeonsi-stoney-gles2:amd64
+    - .radeonsi-stoney-gles2:amd64
   variables:
     DEQP_VERSION: gles3
     CI_NODE_INDEX: 1
@@ -334,7 +334,7 @@ radeonsi-stoney-gles3:amd64:
 
 radeonsi-stoney-gles31:amd64:
   extends:
-    - radeonsi-stoney-gles2:amd64
+    - .radeonsi-stoney-gles2:amd64
   variables:
     DEQP_VERSION: gles31
     CI_NODE_INDEX: 1