CI: migrate custom jobs to RTX PRO 6000

Author: bdice

.github/workflows/pr.yaml

@@ -302,7 +302,7 @@ jobs:
     with:
       build_type: pull-request
       script: "ci/test_cpp_memcheck.sh"
-      node_type: "gpu-l4-latest-1"
+      node_type: "gpu-rtxpro6000-latest-1"
   conda-python-build:
     needs: [build-details, conda-cpp-build]
     permissions:

.github/workflows/test.yaml

@@ -79,7 +79,7 @@ jobs:
       branch: ${{ inputs.branch }}
       container-options: "--cap-add CAP_SYS_PTRACE --shm-size=8g --ulimit=nofile=1000000:1000000"
       date: ${{ inputs.date }}
-      node_type: "gpu-l4-latest-1"
+      node_type: "gpu-rtxpro6000-latest-1"
       script: ci/test_cpp_memcheck.sh
       sha: ${{ inputs.sha }}
   conda-python-tests: