Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.103 to 1.0.104. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/dtolnay/proc-macro2/releases">proc-macro2's releases</a>.</em></p> <blockquote> <h2>1.0.104</h2> <ul> <li>Add Rust 1.92.0's TokenStream Extend impls (<a href="https://redirect.github.com/dtolnay/proc-macro2/issues/527">#527</a>, <a href="https://redirect.github.com/rust-lang/rust/pull/145722">rust-lang/rust#145722</a>)</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/dtolnay/proc-macro2/commit/43213695a9a04a0e33a72595f3d635b45a7ed07a"><code>4321369</code></a> Release 1.0.104</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/95611440e1f501a5e50d2f5a29908d2650848a9c"><code>9561144</code></a> Merge pull request <a href="https://redirect.github.com/dtolnay/proc-macro2/issues/527">#527</a> from dtolnay/extend</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/57fed011a3c73eefb6015422320aeb2a301ebb7d"><code>57fed01</code></a> Update actions/upload-artifact@v5 -> v6</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/1096f1ac94516098352a2482fb7d037c93b64732"><code>1096f1a</code></a> Update actions/upload-artifact@v4 -> v5</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/4275e266801b5bea2c767f7e5f347152a4744cf3"><code>4275e26</code></a> Update to 2021 edition</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/bccca27b019e8f84d1ad702768146df174fabbe7"><code>bccca27</code></a> Delete rustversion attributes older than required compiler version</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/8f4c8018160a31810a755c481822f7db5cfcde5f"><code>8f4c801</code></a> Update actions/checkout@v5 -> v6</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/1baff31ed17c088ad13c6ba38c24a3f4594d80fb"><code>1baff31</code></a> Add new TokenStream Extend impls</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/6f45ba0bae1ff70f607bc63d2ac73dc7b440de22"><code>6f45ba0</code></a> Rename TokenTree collections to "tokens"</li> <li><a href="https://github.com/dtolnay/proc-macro2/commit/2942447b63b0aeaa6cbdd2ee8fe1630768994c0f"><code>2942447</code></a> Merge pull request <a href="https://redirect.github.com/dtolnay/proc-macro2/issues/526">#526</a> from dtolnay/up</li> <li>Additional commits viewable in <a href="https://github.com/dtolnay/proc-macro2/compare/1.0.103...1.0.104">compare view</a></li> </ul> </details> <br /> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=proc-macro2&package-manager=cargo&previous-version=1.0.103&new-version=1.0.104)](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 show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@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> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>