chore: eslint ignore .next-* #616

Job	Run time
release	12m 52s
release-docker	15m 31s
test-js	4m 4s
test-go (ubuntu-latest, ./renterd)	53s
test-go (ubuntu-latest, ./hostd)	52s
test-go (ubuntu-latest, ./walletd)	47s
test-go (macos-latest, ./renterd)	59s
test-go (macos-latest, ./hostd)	58s
test-go (macos-latest, ./walletd)	56s
test-go (windows-latest, ./renterd)	1m 33s
test-go (windows-latest, ./hostd)	1m 26s
test-go (windows-latest, ./walletd)	1m 19s
e2e / explorer-e2e-shard-tests	0s
e2e / hostd-e2e-shard-tests	0s
e2e / renterd-e2e-shard-tests	0s
e2e / walletd-e2e-shard-tests	0s
e2e / hostd-e2e-merge-reports / merge-reports	7s
e2e / renterd-e2e-merge-reports / merge-reports	12s
e2e / explorer-e2e-merge-reports / merge-reports	6s
e2e / walletd-e2e-merge-reports / merge-reports	9s
	42m 44s

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