Bump github.com/hashicorp/hcl from 1.0.1-vault-5 to 1.0.1-vault #434

Job	Run time
cache-deps (windows)	6m 52s
cache-deps (linux)	1m 25s
unit-test (linux with race detection)	10m 1s
unit-test (ubuntu-20.04)	9m 53s
unit-test (macos-latest)	10m 7s
lint (linux)	11m 9s
images (linux)	12m 35s
artifacts (linux)	10m 46s
lint (windows)	30m 43s
artifact (windows)	22m 40s
unit-test (windows)	25m 43s
integration (linux) (5, 1)	10m 30s
integration (linux) (5, 2)	15m 31s
integration (linux) (5, 3)	16m 57s
integration (linux) (5, 4)	8m 47s
integration (linux) (5, 5)	18m 19s
images (windows)	4m 49s
integration (windows)	15m 9s
success	0s
	4h 1m 56s

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