ci: remove `rm .npmrc` from Check / Coverage job #19

Job	Run time
Check / Dry Run	1m 27s
Check / Lint	30s
Build / Pull Request	8s
Check / Build	26s
Check / Matrix	3s
Check / Test (tests/agent)	1m 54s
Check / Test (tests/audit)	41s
Check / Test (tests/identities)	1m 9s
Check / Test (tests/keys)	58s
Check / Test (tests/nat)	22s
Check / Test (tests/nodes)	1m 7s
Check / Test (tests/notifications)	52s
Check / Test (tests/secrets)	53s
Check / Test (tests/utils)	20s
Check / Test (tests/vaults)	1m 3s
Check / Test (tests/bootstrap.test.ts)	35s
Check / Test (tests/polykey.test.ts)	23s
Check / Test (tests/sessions.test.ts)	45s
Check / Test (tests/utils.retryAuthentication.test.ts)	24s
Check / Test (tests/utils.test.ts)	20s
Check / Coverage	38s
Integration / Merge	7s
	15m 5s

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