[CI] the default ggml is b2534, deprecate b2334 (second-state#123)

Signed-off-by: hydai <z54981220@gmail.com>

Author: hydai

.github/workflows/llama.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         runner: [ubuntu-20.04, macos-13, macos-m1]
-        plugin: [wasi_nn-ggml, wasi_nn-ggml-b2334]
+        plugin: [wasi_nn-ggml]
         job:
           - name: "Tiny Llama"
             run: |