url: make the context non-enumerable
At the moment we expose the context as a normal property on the URL which makes them enumerable and considered by assert libraries even though the context carries path-dependent information that do not affect the equivalence of these objects. This patch fixes it in a minimal manner by marking the context non-enumerable as making it full private would require more refactoring and can be done in a bigger patch later.
Refs: https://github.com/nodejs/node/issues/24211
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
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