Update dependency eslint-plugin-jsonc to v2.21.1 #279

Job	Run time
github-action / CI / lint	6s
github-action / CI / context	4s
github-action / Readme	0s
github-action / CI / test (test-negative.yml)	1m 1s
github-action / CI / test (test-query-3.yml)	50s
github-action / CI / test (test-multiline.yml)	51s
github-action / CI / test (test-wrong-yaml-config.yml)	52s
github-action / CI / test (test-structure.yml)	53s
github-action / CI / test (test-positive.yml)	1m 2s
github-action / CI / test (test-query-2.yml)	1m 2s
github-action / CI / test (test-query-1.yml)	1m 4s
github-action / ci	2s
github-action / Release	0s
	7m 47s

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