Bump anyhow from 1.0.69 to 1.0.70 in /packer (#4609)

Summary:
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.69 to 1.0.70.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dtolnay/anyhow/releases">anyhow's releases</a>.</em></p>
<blockquote>
<h2>1.0.70</h2>
<ul>
<li>Update syn dependency to 2.x</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="e4db1f96fd"><code>e4db1f9</code></a> Release 1.0.70</li>
<li><a href="10f5994a05"><code>10f5994</code></a> Merge pull request <a href="https://redirect.github.com/dtolnay/anyhow/issues/302">#302</a> from dtolnay/syn</li>
<li><a href="4a6b90c96a"><code>4a6b90c</code></a> Update to syn 2</li>
<li><a href="553ed38434"><code>553ed38</code></a> Update clippy.toml msrv to match rust-version in Cargo.toml</li>
<li><a href="d30b027581"><code>d30b027</code></a> Ignore let_underscore_untyped pedantic clippy lint</li>
<li><a href="2c2803f901"><code>2c2803f</code></a> Merge pull request <a href="https://redirect.github.com/dtolnay/anyhow/issues/298">#298</a> from dtolnay/constblock</li>
<li><a href="b2492874bc"><code>b249287</code></a> Support const block syntax in ensure! macro</li>
<li><a href="80d4c8d11b"><code>80d4c8d</code></a> Retitle the randomize-layout CI step</li>
<li><a href="4804a783a7"><code>4804a78</code></a> Support a manual trigger on CI workflow</li>
<li><a href="347b473a47"><code>347b473</code></a> Test with randomized type layout on nightly</li>
<li>Additional commits viewable in <a href="https://github.com/dtolnay/anyhow/compare/1.0.69...1.0.70">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=anyhow&package-manager=cargo&previous-version=1.0.69&new-version=1.0.70)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

 ---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `dependabot rebase` will rebase this PR
- `dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `dependabot merge` will merge this PR after your CI passes on it
- `dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `dependabot cancel merge` will cancel a previously requested merge and block automerging
- `dependabot reopen` will reopen this PR if it is closed
- `dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/4609

Reviewed By: mweststrate

Differential Revision: D44262488

Pulled By: passy

fbshipit-source-id: 4673afce709fb5b20f94d5b834ae9839baf6c9d9

packer/Cargo.lock

@@ -13,9 +13,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.69"
+version = "1.0.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"
+checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4"
 
 [[package]]
 name = "atty"