centos-7,windows-1809: Update CMake to 3.16.4

centos-7/Dockerfile

@@ -15,7 +15,7 @@ ADD bash/toolchain.sh /etc/profile.d/toolchain.sh
 ADD bash/ld-library-path.sh /etc/profile.d/ld-library-path.sh
 
 # CMake
-RUN version=3.15.5 && \
+RUN version=3.16.4 && \
     yum install -y \
         curl-devel \
         expat-devel \

windows-1809/base/Dockerfile

@@ -12,7 +12,7 @@ ADD powershell/00-Must-Run.ps1 /Windows/System32/WindowsPowerShell/v1.0/profile.
 RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; \
     Invoke-Expression ((New-Object Net.WebClient).DownloadString('https://chocolatey.org/install.ps1')); \
     Must-Run choco install -y dotnetfx --version 4.7.2.20180712; \
-    Must-Run choco install -y cmake --version 3.15.5 --installargs "ADD_CMAKE_TO_PATH=System"; \
+    Must-Run choco install -y cmake --version 3.16.4 --installargs "ADD_CMAKE_TO_PATH=System"; \
     Must-Run choco install -y kitware-ninja --version 1.8.2.8127911; \
     Must-Run choco install -y \
         git \