In order to prepare for publishing this PR does the following steps (see
commits):
- Move all `path` dependencies to the workspace Cargo.toml, and
reference that.
- Move all path dependencies in the workspace Cargo.toml into a
dedicated section, to make bumping version numbers easier later.
- Add the version requirement. Note that we currently only version bump
servoshell. There was agreement to version everything with the same
version as servoshell, but that be done in a follow-up. The diff is
already large enough as is.
- Add a tidy lint to catch `path` usages outside the root Cargo.toml. I
switched to [`tomllib`] (which was added to the python stdlib in 3.11),
since the third-party `toml` library failed to parse Cargo.toml files
with `workspace.version` (did not like the `.` in a `key`).
[`tomllib`]: https://docs.python.org/3/library/tomllib.html
Testing: Should be covered by regular CI testing.
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Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>