fix: Use consistent CMake settings for all modules (#5228)

* Resolves an issue introduced in #5111, which inadvertently removed the
  -Wno-maybe-uninitialized compiler option from some xrpl.libxrpl
  modules. This resulted in new "may be used uninitialized" build
  warnings, first noticed in the "protocol" module. When compiling with
  derr=TRUE, those warnings became errors, which made the build fail.
* Github CI actions will build with the assert and werr options turned
  on. This will cause CI jobs to fail if a developer introduces a new
  compiler warning, or causes an assert to fail in release builds.
* Includes the OS and compiler version in the linux dependencies jobs in
  the "check environment" step.
* Translates the `unity` build option into `CMAKE_UNITY_BUILD` setting.

.github/actions/build/action.yml

@@ -20,6 +20,8 @@ runs:
           ${{ inputs.generator && format('-G "{0}"', inputs.generator) || '' }} \
           -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake \
           -DCMAKE_BUILD_TYPE=${{ inputs.configuration }} \
+          -Dassert=TRUE \
+          -Dwerr=TRUE \
           -Dtests=TRUE \
           -Dxrpld=TRUE \
           ${{ inputs.cmake-args }} \