Bump version to 1.2.5

[absternator]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[absternator]

@conda-forge-admin, please rerender

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

[absternator]

@johnlees please can you push tag v1.2.5 for mandrake 😄

[johnlees]

@johnlees please can you push tag v1.2.5 for mandrake 😄

Just released!

[johnlees]

Changes to boost in the CMakeLists are causing:

  CMake Error at CMakeLists.txt:38 (find_package):
    Could not find a package configuration file provided by "Boost" with any of
    the following names:

      BoostConfig.cmake
      boost-config.cmake

    Add the installation prefix of "Boost" to CMAKE_PREFIX_PATH or set
    "Boost_DIR" to a directory containing one of the above files.  If "Boost"
    provides a separate development package or SDK, be sure it has been
    installed.

Which probably needs to be patched in this recipe