Externals Update, master branch (2021.11.19.)

Updated all projects to atlasexternals-2.0.122. The list of changes wrt. atlasexternals-2.0.121 are the following (atlasexternals@2.0.121...2.0.122):

• Made the deduction of "nightly name" more robust for the generated ReleaseData file (thanks to @fwinkl, fixing ATLINFR-4320);
• Silenced a warning about TBB_ROOT during the re-configuration of a build area that uses Gaudi (thanks to @fwinkl, fixing ATLINFR-4126);
• Made the NumPy executable(s) available in the runtime environment when using Findnumpy.cmake (pinging @ewelina, @mcfayden, @hmildner);
• Made AthenaExternals always set up the runtime environment for the CUDA version that is available to it (from the LCG release).

The last update is meant to provide an "elegant fix" for ATLINFR-4342. With this all included, the nightly/CI will no longer need to rely on asetup for setting up CUDA when building Athena.

None of these updates are supposed to change how the CI build happens. So I'm not setting either full-build or full-unit-tests on this MR... 🤔