refactor(nx-plugin): remove options merge (#1158) #6887

Job	Run time
Linter	58s
Format check	47s
Build	1m 5s
Unit tests (ubuntu-latest)	51s
Unit tests (macos-latest)	1m 15s
Unit tests (windows-latest)	1m 42s
Integration tests (ubuntu-latest)	53s
Integration tests (windows-latest)	1m 50s
E2E tests (ubuntu-latest)	2m 17s
E2E tests (macos-latest)	3m 15s
Integration tests (macos-latest)	56s
E2E tests (windows-latest)	4m 36s
	20m 25s

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