Cleanup the cmake output

Currently cmake complains heavily during the build, figure out what needs to be done to fix the issues;
```
CMake Warning (dev) at /usr/local/share/cmake-3.19/Modules/ExternalProject.cmake:2143 (message):
Policy CMP0114 is not set: ExternalProject step targets fully adopt their
steps. Run "cmake --help-policy CMP0114" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.

ExternalProject target 'antlr4_runtime' would depend on the targets for
step(s) 'build_static' under policy CMP0114, but this is being left out for
compatibility since the policy is not set.
Call Stack (most recent call first):
/home/runner/work/fasm/fasm/third_party/antlr4/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake:128 (ExternalProject_Add_StepTargets)
CMakeLists.txt:23 (include)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/local/share/cmake-3.19/Modules/ExternalProject.cmake:2143 (message):
Policy CMP0114 is not set: ExternalProject step targets fully adopt their
steps. Run "cmake --help-policy CMP0114" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.

ExternalProject target 'antlr4_runtime' would depend on the targets for
step(s) 'build_shared' under policy CMP0114, but this is being left out for
compatibility since the policy is not set.
Call Stack (most recent call first):
/home/runner/work/fasm/fasm/third_party/antlr4/runtime/Cpp/cmake/ExternalAntlr4Cpp.cmake:145 (ExternalProject_Add_StepTargets)
CMakeLists.txt:23 (include)
This warning is for project developers. Use -Wno-dev to suppress it.

CMake Deprecation Warning at /home/runner/work/fasm/fasm/third_party/googletest/CMakeLists.txt:4 (cmake_minimum_required):
Compatibility with CMake < 2.8.12 will be removed from a future version of
CMake.

Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at /home/runner/work/fasm/fasm/third_party/googletest/googlemock/CMakeLists.txt:45 (cmake_minimum_required):
Compatibility with CMake < 2.8.12 will be removed from a future version of
CMake.

Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at /home/runner/work/fasm/fasm/third_party/googletest/googletest/CMakeLists.txt:56 (cmake_minimum_required):
Compatibility with CMake < 2.8.12 will be removed from a future version of
CMake.

Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.

```