Remove unused containers (#53)

* Remove unused containers

* fix

* disable spots

Author: hcho3

.github/runs-on.yml

@@ -12,7 +12,9 @@ runners:
     cpu: 16
     family: ["c7i-flex", "c7i", "c7a", "c5", "c5a"]
     image: linux-amd64
+    spot: "false"
   linux-arm64-cpu:
     cpu: 16
     family: ["c6g", "c7g"]
     image: ubuntu24-full-arm64
+    spot: "false"

.github/workflows/containers.yml

@@ -50,7 +50,6 @@ jobs:
           - xgb-ci.gpu_build_r_rockylinux8
           - xgb-ci.gpu_build_rockylinux8
           - xgb-ci.gpu_build_cuda13_rockylinux8
-          - xgb-ci.gpu_build_rockylinux8_dev_ver
           - xgb-ci.jvm
           - xgb-ci.jvm_gpu_build
           - xgb-ci.manylinux_2_28_x86_64

containers/ci_container.yml

@@ -5,7 +5,6 @@
 
 x-rapids_versions:
   stable: &rapids_version "25.10"
-  dev: &dev_rapids_version "25.12"
 
 x-cuda_versions:
   cuda: &cuda_version "12.8.0"
@@ -18,13 +17,6 @@ xgb-ci.gpu_build_rockylinux8:
     NCCL_VERSION: *nccl_version
     RAPIDS_VERSION: *rapids_version
 
-xgb-ci.gpu_build_rockylinux8_dev_ver:
-  container_def: gpu_build_rockylinux8
-  build_args:
-    CUDA_VERSION: *cuda_version
-    NCCL_VERSION: *nccl_version
-    RAPIDS_VERSION: *dev_rapids_version
-
 xgb-ci.gpu_build_cuda13_rockylinux8:
   container_def: gpu_build_cuda13_rockylinux8
   build_args:
@@ -47,14 +39,6 @@ xgb-ci.gpu:
     NCCL_VERSION: *nccl_version
     RAPIDS_VERSION: *rapids_version
 
-xgb-ci.gpu_dev_ver:
-  container_def: gpu
-  build_args:
-    CUDA_VERSION: *cuda_version
-    NCCL_VERSION: *nccl_version
-    RAPIDS_VERSION: *dev_rapids_version
-    RAPIDSAI_CONDA_CHANNEL: "rapidsai-nightly"
-
 xgb-ci.clang_tidy:
   container_def: clang_tidy
   build_args: