ci: Uprev piglit to 9d87cc3d79e ("framework/replay: send backend's subprocess stderr to sys.stderr")

This pulls in a fix for replayer to make the backends send their
stderr to sys.stderr always.

v2:
  - Updated piglit results for llvmpipe, softpipe, zink and
    radeonsi-stoney.

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> [v1]
Reviewed-by: Martin Peres <martin.peres@mupuf.org> [v1]
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10854>

.gitlab-ci.yml

@@ -413,13 +413,13 @@ x86_test-base:
 x86_test-gl:
   extends: .use-x86_test-base
   variables:
-    MESA_IMAGE_TAG: &x86_test-gl "2021-05-14-vkglcts-1.2.6.1"
+    MESA_IMAGE_TAG: &x86_test-gl "2021-05-19-piglit"
 
 # Debian 11 based x86 test image for VK
 x86_test-vk:
   extends: .use-x86_test-base
   variables:
-    MESA_IMAGE_TAG: &x86_test-vk "2021-05-14-vkglcts-1.2.6.1"
+    MESA_IMAGE_TAG: &x86_test-vk "2021-05-19-piglit"
 
 # Debian 11 based ARM build image
 arm_build:
@@ -447,7 +447,7 @@ arm_build:
   variables:
     GIT_STRATEGY: fetch
     KERNEL_URL: "https://gitlab.freedesktop.org/gfx-ci/linux/-/archive/v5.13-rc2-for-mesa-ci-4a93e50f5c34/linux-v5.13-rc2-for-mesa-ci-4a93e50f5c34.tar.bz2"
-    MESA_ROOTFS_TAG: &kernel-rootfs "2021-05-18-v5.13-rc2-4"
+    MESA_ROOTFS_TAG: &kernel-rootfs "2021-05-19-piglit"
     DISTRIBUTION_TAG: &distribution-tag-arm "${MESA_ROOTFS_TAG}--${MESA_IMAGE_TAG}--${MESA_TEMPLATES_COMMIT}"
   script:
     - .gitlab-ci/container/lava_build.sh