[ci] restrict CMake version for CUDA+Clang jobs (#4104)

* restrict CMake version for CUDA jobs

* Update setup.sh

* Update setup.sh

* Update setup.sh

.ci/setup.sh

@@ -97,9 +97,15 @@ else  # Linux
         curl -sL https://apt.kitware.com/keys/kitware-archive-latest.asc | apt-key add -
         apt-add-repository "deb https://apt.kitware.com/ubuntu/ $(lsb_release -cs) main" -y
         apt-get update
+        if [[ $COMPILER == "clang" ]]; then
+            apt-get install --no-install-recommends -y \
+                cmake="3.19.5-0kitware1" \
+                cmake-data="3.19.5-0kitware1"
+        else
             apt-get install --no-install-recommends -y \
                 cmake
         fi
+    fi
     if [[ $SETUP_CONDA != "false" ]]; then
         ARCH=$(uname -m)
         if [[ $ARCH == "x86_64" ]]; then