ci: Bump good mesa version and drm

The old mesa version had a bug in handling EXT_texture_sRGB_R8 exposing
the texture type even though the extension was not supported by the API.
Bump also libdrm since it needs the update.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

ci/Dockerfile

@@ -149,7 +149,7 @@ RUN git clone --depth=1 https://github.com/VoltLang/Watt.git && \
     rm -rf /volt
 WORKDIR /
 
-ARG KNOWN_GOOD_DRM=libdrm-2.4.95
+ARG KNOWN_GOOD_DRM=libdrm-2.4.97
 WORKDIR /drm
 RUN git clone --shallow-since="$GIT_DATE" https://gitlab.freedesktop.org/mesa/drm.git . && \
     git checkout ${KNOWN_GOOD_DRM} && \
@@ -161,7 +161,7 @@ RUN git clone --shallow-since="$GIT_DATE" https://gitlab.freedesktop.org/mesa/dr
     rm -rf /drm
 WORKDIR /
 
-ARG KNOWN_GOOD_MESA=9575cd289325ddbfa96291d7886cfc32a0487e79
+ARG KNOWN_GOOD_MESA=e166003cb7a480fb2672b06201688d4717cbc316
 WORKDIR /mesa
 RUN git clone --shallow-since="$GIT_DATE" https://gitlab.freedesktop.org/mesa/mesa.git . && \
     git checkout ${KNOWN_GOOD_MESA} && \