feat: add AMD GPU (amdflang/OpenMP offload) container #7284

Job	Run time
Detect File Changes	14s
Oak Ridge \| Frontier (AMD) (gpu-omp)	1h 40m 30s
Georgia Tech \| Phoenix (NVHPC) (gpu-acc)	52m 2s
Oak Ridge \| Frontier (CCE) (gpu-acc)	45m 11s
Oak Ridge \| Frontier (CCE) (gpu-omp)	57m 33s
Georgia Tech \| Phoenix (NVHPC) (cpu)	32m 50s
Georgia Tech \| Phoenix (NVHPC) (gpu-omp)	51m 20s
	5h 39m 40s

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