cont : update nvidia vulkan workflows

Author: ggerganov

.github/workflows/build.yml

@@ -1316,7 +1316,7 @@ jobs:
           nvidia-smi
           GG_BUILD_CUDA=1 bash ./ci/run.sh ~/results/llama.cpp /mnt/llama.cpp
 
-  ggml-ci-x64-nvidia-vulkan:
+  ggml-ci-x64-nvidia-vulkan-cm:
     runs-on: [self-hosted, Linux, X64, NVIDIA]
 
     steps:
@@ -1328,9 +1328,9 @@ jobs:
         id: ggml-ci
         run: |
           vulkaninfo --summary
-          GG_BUILD_VULKAN=1 bash ./ci/run.sh ~/results/llama.cpp /mnt/llama.cpp
+          GG_BUILD_VULKAN=1 GGML_VK_DISABLE_COOPMAT2=1 bash ./ci/run.sh ~/results/llama.cpp /mnt/llama.cpp
 
-  ggml-ci-x64-nvidia-vulkan-coopmat1:
+  ggml-ci-x64-nvidia-vulkan-cm2:
     runs-on: [self-hosted, Linux, X64, NVIDIA, COOPMAT2]
 
     steps:
@@ -1342,7 +1342,7 @@ jobs:
         id: ggml-ci
         run: |
           vulkaninfo --summary
-          GG_BUILD_VULKAN=1 GGML_VK_DISABLE_COOPMAT2=1 bash ./ci/run.sh ~/results/llama.cpp /mnt/llama.cpp
+          GG_BUILD_VULKAN=1 bash ./ci/run.sh ~/results/llama.cpp /mnt/llama.cpp
 
   ggml-ci-x64-cpu-amx:
     runs-on: [self-hosted, Linux, X64, CPU, AMX]