panfrost/ci: Move panfrost-g52-piglit to nightly

The panfrost-g52-piglit-gles2:arm64 job was taking 19 minutes on
average, and the pending durations of the meson-g12b-a311d-khadas-vim3
DUTs in LAVA were reaching 5-6 minutes, so we have to make this job
manual instead of pre-merge.

Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33082>

src/panfrost/ci/gitlab-ci.yml

@@ -353,7 +353,7 @@ panfrost-g52-vk-full:arm64:
 panfrost-g52-piglit-gles2:arm64:
   extends:
     - .lava-test-deqp:arm64
-    - .panfrost-bifrost-gl-rules
+    - .panfrost-bifrost-gl-manual-rules
     - .panfrost-test
     - .lava-meson-g12b-a311d-khadas-vim3:arm64
   variables: