Use newly built CI images with CUDA 11.8

[dagardner-nv]

• Use newly built CI images with CUDA 11.8
• Use the version of gcov installed via conda

[codecov]

Codecov Report

Merging #311 (51a09a6) into branch-23.07 (a4c1f3b) will decrease coverage by 0.01%.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-23.07     #311      +/-   ##
================================================
- Coverage         73.30%   73.29%   -0.01%     
================================================
  Files               390      390              
  Lines             13353    13352       -1     
  Branches           1006     1005       -1     
================================================
- Hits               9788     9786       -2     
- Misses             3565     3566       +1     

Flag	Coverage Δ
cpp	69.12% <ø> (-0.02%)	⬇️
py	42.19% <ø> (-0.02%)	⬇️

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see 2 files with indirect coverage changes

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[dagardner-nv]

/merged

[dagardner-nv]

/merge