Replace ubuntu18.04 with ubuntu20.04

Ubuntu 18.04 is not supported anymore

Signed-off-by: Jordan Jacobelli <[email protected]>

Author: jjacobelli

.devcontainer/cuda11.1-gcc7/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "shutdownAction": "stopContainer",
-  "image": "rapidsai/devcontainers:24.12-cpp-gcc7-cuda11.1-ubuntu18.04",
+  "image": "rapidsai/devcontainers:24.12-cpp-gcc7-cuda11.1-ubuntu20.04",
   "hostRequirements": {
     "gpu": "optional"
   },

.devcontainer/cuda11.1-gcc8/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "shutdownAction": "stopContainer",
-  "image": "rapidsai/devcontainers:24.12-cpp-gcc8-cuda11.1-ubuntu18.04",
+  "image": "rapidsai/devcontainers:24.12-cpp-gcc8-cuda11.1-ubuntu20.04",
   "hostRequirements": {
     "gpu": "optional"
   },

.devcontainer/cuda11.1-gcc9/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "shutdownAction": "stopContainer",
-  "image": "rapidsai/devcontainers:24.12-cpp-gcc9-cuda11.1-ubuntu18.04",
+  "image": "rapidsai/devcontainers:24.12-cpp-gcc9-cuda11.1-ubuntu20.04",
   "hostRequirements": {
     "gpu": "optional"
   },

.devcontainer/cuda11.1-llvm9/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "shutdownAction": "stopContainer",
-  "image": "rapidsai/devcontainers:24.12-cpp-llvm9-cuda11.1-ubuntu18.04",
+  "image": "rapidsai/devcontainers:24.12-cpp-llvm9-cuda11.1-ubuntu20.04",
   "hostRequirements": {
     "gpu": "optional"
   },

ci/matrix.yaml

@@ -47,10 +47,10 @@ msvc2022: &msvc2022 { name: 'cl', version: '14.39', exe: 'cl++' }
 # Configurations that will run for every PR
 pull_request:
   nvcc:
-    - {cuda: *cuda_prev_min, os: 'ubuntu18.04', cpu: 'amd64', compiler: *gcc7     }
-    - {cuda: *cuda_prev_min, os: 'ubuntu18.04', cpu: 'amd64', compiler: *gcc8     }
-    - {cuda: *cuda_prev_min, os: 'ubuntu18.04', cpu: 'amd64', compiler: *gcc9     }
-    - {cuda: *cuda_prev_min, os: 'ubuntu18.04', cpu: 'amd64', compiler: *llvm9    }
+    - {cuda: *cuda_prev_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *gcc7     }
+    - {cuda: *cuda_prev_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *gcc8     }
+    - {cuda: *cuda_prev_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *gcc9     }
+    - {cuda: *cuda_prev_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *llvm9    }
     - {cuda: *cuda_prev_max, os: 'ubuntu22.04', cpu: 'amd64', compiler: *gcc11    }
     - {cuda: *cuda_curr_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *gcc7     }
     - {cuda: *cuda_curr_min, os: 'ubuntu20.04', cpu: 'amd64', compiler: *gcc8     }