podspec: add additional features for podspec #410

Job	Run time
Unit Tests	1m 53s
test-jobs (post, 100)	7m 25s
Formatting	24s
test-jobs (batch, 100)	7m 52s
test-jobs (timed, 100)	7m 58s
test-jobs (debug, 100)	7m 55s
test-jobs (volumes, 100)	7m 30s
test-jobs (hello-world, 100)	7m 17s
test-jobs (nginx-service, 100)	7m 50s
test-jobs (custom-config, 100)	7m 39s
test-jobs (minimal-service, 100)	7m 20s
test-jobs (existing-volumes, 100)	8m 22s
test-jobs (flux-resource-list, 100)	7m 55s
test-jobs (nginx-sidecar-service, 100)	7m 59s
test-jobs (pokemon, ghcr.io/rse-ops/pokemon:app-latest, 100)	8m 31s
test-jobs (snakemake, ghcr.io/rse-ops/atacseq:app-latest, 100)	9m 32s
test-jobs (singularity, ghcr.io/rse-ops/singularity:tag-mamba, 100)	8m 12s
test-jobs (lammps, ghcr.io/converged-computing/metric-lammps:latest, 100)	8m 8s
test-jobs (disable-view, ghcr.io/rse-ops/lammps:flux-sched-focal, 100)	8m 37s
	2h 18m 19s

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