drop unnecessary BNB_CUDA_VERSION env var from docker as it just results in warnings (#2121) [skip ci]

* drop unnecessary BNB_CUDA_VERSION env var from docker as it just results in warnings

* make sure to run tests when cicd Dockerfile changes

cicd/Dockerfile.jinja

@@ -4,7 +4,6 @@ ENV TORCH_CUDA_ARCH_LIST="7.0 7.5 8.0 8.6+PTX"
 ENV AXOLOTL_EXTRAS="{{ AXOLOTL_EXTRAS }}"
 ENV AXOLOTL_ARGS="{{ AXOLOTL_ARGS }}"
 ENV CUDA="{{ CUDA }}"
-ENV BNB_CUDA_VERSION="{{ CUDA }}"
 ENV PYTORCH_VERSION="{{ PYTORCH_VERSION }}"
 ENV GITHUB_REF="{{ GITHUB_REF }}"
 ENV GITHUB_SHA="{{ GITHUB_SHA }}"