GTest updates

[bennibbelink]

This PR has minor updates for compatibility with cyclus PR #1738:

• Requires that the compiler supports C++17. We already require this in Cyclus, looks like this change hasn't been made in cycamore yet. Gtest requires at least C++14.
• Change instances of INSTANTIATE_TEST_CASE_P to INSTANTIATE_TEST_SUITE_P

[github-actions]

Build Status Report - 09f46f0 - 2024-04-20 18:15:24 -0500

Build FROM cyclus_20.04_apt/cyclus:latest

• Cycamore: Success ✅
• Cymetric: Success ✅

Build FROM cyclus_20.04_apt/cyclus:stable

• Cycamore: Failure ❌
• Cymetric: Skipped due to upstream failure ⚠️

Build FROM cyclus_20.04_conda/cyclus:latest

• Cycamore: Success ✅
• Cymetric: Success ✅

Build FROM cyclus_20.04_conda/cyclus:stable

• Cycamore: Failure ❌
• Cymetric: Skipped due to upstream failure ⚠️

Build FROM cyclus_22.04_apt/cyclus:latest

• Cycamore: Success ✅
• Cymetric: Success ✅

Build FROM cyclus_22.04_apt/cyclus:stable

• Cycamore: Failure ❌
• Cymetric: Skipped due to upstream failure ⚠️

Build FROM cyclus_22.04_conda/cyclus:latest

• Cycamore: Success ✅
• Cymetric: Success ✅

Build FROM cyclus_22.04_conda/cyclus:stable

• Cycamore: Failure ❌
• Cymetric: Skipped due to upstream failure ⚠️

[bennibbelink]

Hmm okay looks like INSTANTIATE_TEST_SUITE_P is a breaking change until the newer GTest library is used. Based on my local testing this is how I propose we move forward with this:

• PR Cycamore (Require C++17 standard in cycamore #599) to require C++17 - this should fix the cycamore build with the new GTest Library (We should see CI in cyclus #1738 pass once this is merged)
• PR Cyclus #1738 with the updated GTest library
• Once Cyclus #1738 is merged the changes to INSTANTIATE_TEST_SUITE_P succeed here

[gonuke]

BTW - it looks like you reran the upstream/downstream tests but the hash didn't change and the timestamp you are using is from the hash. Thus the timestamp/hash info isn't necessarily helpful to know when the tests occurred.

[gonuke]

This looks like it is passing as expected on up/downstream tests. Ready to merge - thanks @bennibbelink