chore(deps): bump ed25519-dalek from 2.2.0 to 3.0.0 (#159)

Bumps
[ed25519-dalek](https://github.com/dalek-cryptography/curve25519-dalek)
from 2.2.0 to 3.0.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/dalek-cryptography/curve25519-dalek/blob/3.0.0/CHANGELOG.md">ed25519-dalek's
changelog</a>.</em></p>
<blockquote>
<h2>3.0.0</h2>
<ul>
<li>Update the <code>digest</code> dependency to <code>0.9</code>. This
requires a major version
because the <code>digest</code> traits are part of the public API, but
there are
otherwise no changes to the API.</li>
</ul>
<h2>2.1.0</h2>
<ul>
<li>Make <code>Scalar::from_bits</code> a <code>const fn</code>,
allowing its use in <code>const</code> contexts.</li>
</ul>
<h2>2.0.0</h2>
<ul>
<li>Fix a data modeling error in the <code>serde</code> feature pointed
out by Trevor Perrin
which caused points and scalars to be serialized with length fields
rather
than as fixed-size 32-byte arrays. This is a breaking change, but it
fixes
compatibility with <code>serde-json</code> and ensures that the
<code>serde-bincode</code> encoding
matches the conventional encoding for X/Ed25519.</li>
<li>Update <code>rand_core</code> to <code>0.5</code>, allowing use with
new <code>rand</code> versions.</li>
<li>Switch from <code>clear_on_drop</code> to <code>zeroize</code> (by
Tony Arcieri).</li>
<li>Require <code>subtle = ^2.2.1</code> and remove the note advising
nightly Rust, which is
no longer required as of that version of <code>subtle</code>. See the
<code>subtle</code>
changelog for more details.</li>
<li>Update <code>README.md</code> for <code>2.x</code> series.</li>
<li>Remove the <code>build.rs</code> hack which loaded the entire crate
into its own
<code>build.rs</code> to generate constants, and keep the constants in
the source code.</li>
</ul>
<p>The only significant change is the data model change to the
<code>serde</code> feature;
besides the <code>rand_core</code> version bump, there are no other
user-visible changes.</p>
<h2>1.2.4</h2>
<ul>
<li>Specify a semver bound for <code>clear_on_drop</code> rather than an
exact version,
addressing an issue where changes to inline assembly in rustc prevented
<code>clear_on_drop</code> from working without an update.</li>
</ul>
<h2>1.2.3</h2>
<ul>
<li>Fix an issue identified by a Quarkslab audit (and Jack Grigg), where
manually
constructing unreduced <code>Scalar</code> values, as needed for
X/Ed25519, and then
performing scalar/scalar arithmetic could compute incorrect
results.</li>
<li>Switch to upstream Rust intrinsics for the IFMA backend now that
they exist in
Rust and don't need to be defined locally.</li>
<li>Ensure that the NAF computation works correctly, even for parameters
never
used elsewhere in the codebase.</li>
<li>Minor refactoring to EdwardsPoint decompression.</li>
<li>Fix broken links in documentation.</li>
<li>Fix compilation on nightly broken due to changes to the
<code>#[doc(include)]</code> path
root (not quite correctly done in 1.2.2).</li>
</ul>
<h2>1.2.2</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/6d96eb7796d706a4f42394e14c87fe7db7a1b289"><code>6d96eb7</code></a>
Bump version to 3.0.0.</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/c68b30fe13fc085e4ef36ee2cd55a06797b5dafe"><code>c68b30f</code></a>
Merge pull request <a
href="https://redirect.github.com/dalek-cryptography/curve25519-dalek/issues/330">#330</a>
from isislovecruft/fix/move-coc</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/2ee61938ee15a0b7046c2b0cbfa639c98e4f9274"><code>2ee6193</code></a>
Merge pull request <a
href="https://redirect.github.com/dalek-cryptography/curve25519-dalek/issues/327">#327</a>
from huitseeker/digests-0.9</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/91a0faea35ee20f3b92470f88416ee6d4ccb15d9"><code>91a0fae</code></a>
Move CoC section from CONTRIBUTING.md to new file.</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/5038fcf50afd682b7f98f5a83490878ffa2526c8"><code>5038fcf</code></a>
Merge pull request <a
href="https://redirect.github.com/dalek-cryptography/curve25519-dalek/issues/308">#308</a>
from isislovecruft/fix/pippenger-typo</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/6afd8ff212694669973043e4277f0938cebff24a"><code>6afd8ff</code></a>
Update sha2, digest to 0.9</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/3cc13a7bec61d3e6047877480d98fb2bce25a80c"><code>3cc13a7</code></a>
Merge branch 'master' into develop</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/c4824e1384ef188eb9284ff866e5ad6b814400f7"><code>c4824e1</code></a>
Merge branch 'release/2.1.0'</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/3fc47ef8675c6c14d26b366bbe4b35767cfceffa"><code>3fc47ef</code></a>
Bump version to 2.1.0</li>
<li><a
href="https://github.com/dalek-cryptography/curve25519-dalek/commit/f04b83055cd656f5987f9347c53d06e2674670c7"><code>f04b830</code></a>
Merge branch 'master' into develop</li>
<li>Additional commits viewable in <a
href="https://github.com/dalek-cryptography/curve25519-dalek/compare/ed25519-2.2.0...3.0.0">compare
view</a></li>
</ul>
</details>
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Cargo.lock

@@ -32,7 +32,7 @@ hex = "0.4"
 getrandom = "0.4"
 walkdir = "2.5"
 dirs = "6.0"
-ed25519-dalek = { version = "2.1", optional = true }
+ed25519-dalek = { version = "3.0", optional = true }
 ureq = { version = "3.3", optional = true }
 
 [features]