pan/ci: Move g610-vk jobs to post-merge CI

The g610-vk jobs are just too unstable to be pre-merge jobs. Let's keep
them as post-merge so people can still execute them manually if they
care.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32129>

src/panfrost/ci/gitlab-ci.yml

@@ -401,7 +401,7 @@ panfrost-g610-vk:arm64:
     - .lava-test-deqp:arm64
     - .panfrost-test
     - .lava-rk3588-rock-5b:arm64
-    - .panfrost-vk-rules
+    - .panfrost-vk-manual-rules
   variables:
     # Using more than 4 cores cause instabilities
     FDO_CI_CONCURRENT: 4