CMake build and test fsgrid

Workflow runs for CMake build and test fsgrid

• Merge pull request #34 from fmihpc/neighbor_index

  failed:
  CMake build and test fsgrid#3:Commit5b3593fpushedbyursg
  master

  Sep 15, 202641s
  More actions for workflow run 3

• Change neighbor_index temp variable from char to int, for arm builds.

  failed:
  CMake build and test fsgrid#2:Pull request#34synchronizebyykempf
  neighbor_index

  Sep 15, 202642s
  More actions for workflow run 2

• Merge pull request #33 from cschpc/refactoring

  failed:
  CMake build and test fsgrid#1:Commit1d41fcdpushedbyursg
  master

  Jun 9, 202639s
  More actions for workflow run 1