ci: bump virglrenderer to latest version

Need this for upcoming GL 4.0 llvmpipe support.

Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5323>
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 385e623..f8c6c9f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -231,7 +231,7 @@
 x86_test-gl:
   extends: .use-x86_test-base
   variables:
-    FDO_DISTRIBUTION_TAG: &x86_test-gl "2020-06-03"
+    FDO_DISTRIBUTION_TAG: &x86_test-gl "2020-06-04"
 
 # Debian 10 based x86 test image for VK
 x86_test-vk:
diff --git a/.gitlab-ci/build-virglrenderer.sh b/.gitlab-ci/build-virglrenderer.sh
index 24c6e58..20cd947 100644
--- a/.gitlab-ci/build-virglrenderer.sh
+++ b/.gitlab-ci/build-virglrenderer.sh
@@ -10,7 +10,7 @@
 popd
 rm -rf /epoxy
 
-VIRGLRENDERER_VERSION=70b18e56d5c3ed69c561c36e098e8aea71ebffc2
+VIRGLRENDERER_VERSION=43148d1115a12219a0560a538c9872d07c28c558
 git clone https://gitlab.freedesktop.org/virgl/virglrenderer.git --single-branch --no-checkout /virglrenderer
 pushd /virglrenderer
 git checkout "$VIRGLRENDERER_VERSION"