ci: Uprev deqp-runner and use "suite" support to merge softpipe runs.

The deqp-runner "suite" support lets us specify all the deqp variants at
once and shard them across gitlab jobs, so we reduce docker overhead and
get fewer jobs to review the output of.

Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12110>

.gitlab-ci.yml

@@ -407,7 +407,7 @@ debian/android_build:
 debian/x86_test-base:
   extends: debian/x86_build-base
   variables:
-    MESA_IMAGE_TAG: &debian-x86_test-base "2021-07-02-bump-libdrm"
+    MESA_IMAGE_TAG: &debian-x86_test-base "2021-07-30-deqp-runner"
 
 .use-debian/x86_test-base:
   extends:
@@ -480,7 +480,7 @@ fedora/x86_build:
   variables:
     GIT_STRATEGY: fetch
     KERNEL_URL: *kernel-rootfs-url
-    MESA_ROOTFS_TAG: &kernel-rootfs "2021-08-02-rust-bump"
+    MESA_ROOTFS_TAG: &kernel-rootfs "2021-08-03-deqp-runner"
     DISTRIBUTION_TAG: &distribution-tag-arm "${MESA_ROOTFS_TAG}--${MESA_ARTIFACTS_TAG}--${MESA_TEMPLATES_COMMIT}"
   script:
     - .gitlab-ci/container/lava_build.sh