ENH: Specify the same CMake version for Linux Python package builds

As Linux comes with some version of CMake,
this problem sneaked in without detection.
If CMake version is important, this difference
between version on different OSes can be confusing.

Author: dzenanz

.github/workflows/build-test-package.yml

@@ -161,6 +161,9 @@ jobs:
       with:
         python-version: 3.8
 
+    - name: Get specific version of CMake, Ninja
+      uses: lukka/get-cmake@v3.18.3
+
     - name: Evaluate template
       shell: bash
       run: |

{{cookiecutter.project_name}}/.github/workflows/build-test-package.yml

@@ -149,6 +149,9 @@ jobs:
         sudo rm -rf "$AGENT_TOOLSDIRECTORY"
         df -h
 
+    - name: Get specific version of CMake, Ninja
+      uses: lukka/get-cmake@v3.18.3
+
     - name: 'Fetch build script'
       run: |
         curl -L https://raw.githubusercontent.com/InsightSoftwareConsortium/ITKPythonPackage/master/scripts/dockcross-manylinux-download-cache-and-build-module-wheels.sh -O