vmware/ci: move jobs to nightly until farm is stabilized

Example of this job hanging/timing out in merge pipelines that
I personally saw in the last 24h (and right now is Monday morning):
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76580719
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76580721
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76581000
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76581063
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76585062
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76585063
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76585109
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76585110
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76587835
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76587836
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607117
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607118
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607119
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607120
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607687
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76607688
- https://gitlab.freedesktop.org/mesa/mesa/-/jobs/76620657

That's a rather long list, so I'm merging this without waiting for your
feedback @blu, but please revert this commit once the issue has been
fixed :)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35048>

src/gallium/drivers/svga/ci/gitlab-ci.yml

@@ -25,7 +25,7 @@ vmware-vmx-piglit:x86_64:
   extends:
     - .lava-x86_64-test-gl
     - .test-piglit
-    - .vmware-rules
+    - .vmware-manual-rules
   timeout: 30m
   parallel: 4
   variables: