Add ESMF::ESMF alias for Baselibs Builds

This release of ESMA_cmake adds an ESMF::ESMF target alias for Baselibs builds for use in MAPL (and eventually beyond). This will be required for Baselibs builds of MAPL 2.44 and higher eventually.

This is being done to fix an issue with UFS builds of MAPL and other GEOS-ESM code (see GEOS-ESM/MAPL#2569)

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From CHANGELOG.md

Added

• Added ESMF::ESMF alias for ESMF library
  • Needed to avoid an issue UFS has with MAPL/GOCART (see GEOS-ESM/MAPL#2569)
  • Needed for Baselibs builds of MAPL 2.44 and higher as we now move to use ESMF::ESMF as the target
  • Will be added to FindESMF.cmake in a future release of ESMF, so we only add the alias if it doesn't exist

Changed

• Update CI to v2 orb

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What's Changed

• Update CircleCI to use Orb v2 by @mathomp4 in #348
• Add ESMF::ESMF Alias by @mathomp4 in #350
• GitFlow: Merge develop into main for release by @mathomp4 in #351

Full Changelog: v3.38.0...v3.39.0