gitlab-ci: Disable jobs for Collabora's LAVA lab

The lab is going down for a few hours to upgrade the LAVA installation
to the latest stable release.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4342>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4342>

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

@@ -74,7 +74,7 @@
   needs:
     - meson-arm64
 
-panfrost-t720-gles2:arm64:
+.panfrost-t720-gles2:arm64:
   extends:
     - .lava-test:arm64
     - .panfrost-rules
@@ -87,7 +87,7 @@ panfrost-t720-gles2:arm64:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-t760-gles2:armhf:
+.panfrost-t760-gles2:armhf:
   extends:
     - .lava-test:armhf
     - .panfrost-rules
@@ -102,7 +102,7 @@ panfrost-t760-gles2:armhf:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-t860-gles2:arm64:
+.panfrost-t860-gles2:arm64:
   extends:
     - .lava-test:arm64
     - .panfrost-rules
@@ -117,7 +117,7 @@ panfrost-t860-gles2:arm64:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-t860-gles3:arm64:
+.panfrost-t860-gles3:arm64:
   extends:
     - .lava-test:arm64
     - .panfrost-rules