ci: Move the performance jobs' allow_failure:true to the gl rules.

This helps clarify what's going on with these magic manual jobs.

Acked-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17445>

.gitlab-ci/test-source-dep.yml

@@ -259,6 +259,9 @@
     - changes:
         *gallium_core_file_list
       when: manual
+  # Allow the merge to complete even before the job completes (since it won't
+  # even start until the separate script triggers on it).
+  allow_failure: true
 
 # Unfortunately YAML doesn't let us concatenate arrays, so we have to do the
 # rules duplication manually

src/freedreno/ci/gitlab-ci.yml

@@ -353,4 +353,3 @@ a630-traces-performance:
     EGL_PLATFORM: surfaceless
     GIT_STRATEGY: none
     HWCI_FREQ_MAX: "true"
-  allow_failure: true

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

@@ -104,7 +104,6 @@ virgl-iris-traces-performance:
     PIGLIT_REPLAY_SUBCOMMAND: profile
     PIGLIT_REPLAY_LOOP_TIMES: 150
     PIGLIT_REPLAY_EXTRA_ARGS: "--download-caching-proxy-url=${FDO_HTTP_CACHE_URI}"
-  allow_failure: true
 
 android-virgl-llvmpipe:
   extends:

src/intel/ci/gitlab-ci.yml

@@ -278,7 +278,6 @@ iris-cml-traces:
     GIT_STRATEGY: none
     HWCI_FREQ_MAX: "true"
     LAVA_TAGS: "cbg-0"
-  allow_failure: true
 
 iris-apl-traces-performance:
   extends: