panfrost/ci: Disable GLES2 jobs when we run GLES3

I've been meaning to make this change for a while, but I've been holding
out in case dEQP-GLES2 on T860/Bifrost catches a driver issue missed by
dEQP-GLES3 and also missed by T720's dEQP-GLES2 job. Given that hasn't
happened (indeed, dEQP-GLES3 is an effective super set of dEQP-GLES2),
let's save the cycles and skip the redundant jobs.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10923>

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

@@ -52,7 +52,7 @@ panfrost-t760-traces:armhf:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-t860-gles2:arm64:
+.panfrost-t860-gles2:arm64:
   extends:
     - .lava-test:arm64
     - .lava-rk3399-gru-kevin
@@ -93,7 +93,7 @@ panfrost-t860-traces:arm64:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-g52-gles2:arm64:
+.panfrost-g52-gles2:arm64:
   extends:
     - .lava-test:arm64
     - .lava-meson-g12b-a311d-khadas-vim3
@@ -129,7 +129,7 @@ panfrost-g52-gles31:arm64:
   tags:
     - mesa-ci-aarch64-lava-collabora
 
-panfrost-g72-gles2:arm64:
+.panfrost-g72-gles2:arm64:
   extends:
     - .lava-test:arm64
     - .lava-acer-mt8183-cp311-3h-jacuzzi