Relax blaze cache size assertion #105

Job	Run time
🚧 Build SPAdes	1m 33s
Multicell B.cereus TruSeq 100x	4m 7s
Nextera L.monocytogenes	5m 4s
Full run M.ruber JGI lane 9	9m 42s
Contigs E.coli JGI lane 7	3m 49s
IonTorrent E.coli K12	29m 34s
Mate-pairs B.faecium	6m 45s
PacBio M.ruber	4m 20s
plasmidSPAdes C.callunae	11m 44s
Saves E.coli 100K	4m 22s
Single-cell P.heparinus JGI lane 7	2m 58s
Single reads E.coli Deeptrench	6m 17s
metaviralSPAdes ERR525599	20m 44s
metaSPAdes JGI 150	15m 36s
Saves E.coli UCSD lane 1	8m 32s
	2h 15m 7s

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