ci: fix MCP registry publishing #948

Job	Run time
Tests on ubuntu-latest with node 22	53s
Tests on ubuntu-latest with node 24	2m 20s
Tests on windows-latest with node 22	2m 24s
Tests on macos-latest with node 22	58s
Tests on windows-latest with node 24	3m 7s
Tests on ubuntu-latest with node 20	54s
Tests on windows-latest with node 20	2m 11s
Tests on macos-latest with node 23	1m 44s
Tests on macos-latest with node 24	1m 56s
Tests on macos-latest with node 20	56s
Tests on windows-latest with node 23	2m 30s
Tests on ubuntu-latest with node 23	1m 5s
[Required] Tests passed	2s
	21m 0s

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