inspector: add inspector_protocol as a direct dependency

Currently, node.js depends on inspector_protocol indirectly through the
dependency on v8.

This is a dependency violation that will make it hard to roll V8 into
Node if V8 gets a newer inspector protocol version with incompatible
API. In fact, this surfaced on one of our bots when we tried to roll new
inspector_protocol into V8.

This patch adds inspector protocol and its required dependencies to node
deps:
- jinja2
- markupsafe

PR-URL: https://github.com/nodejs/node/pull/21975


Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Aleksei Koziatinskii <ak239spb@gmail.com>