Repository: flutter
Issue: Dependabot includes markup in commit messages making logs harder to read.
Labels: team-infra,P3,triaged-infra

These commits make `git log` significantly harder to read. Especially in a repo like the buildroot that gets frequent commits from this bot.

This issue tracks sanitizing the commit messages of dependabot to get rid of markup. Or replace the markup that is more readable in terminal logs, like Markdown.

[An example](https://github.com/flutter/engine/commit/e31fb200d71d8eff96484d011bde3769f6b59501):

```
commit e31fb200d71d8eff96484d011bde3769f6b59501
Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Date:   Mon May 15 09:36:23 2023 +0000

    Bump google/mirror-branch-action from 1.0 to 2.0 (#42037)
    
    Bumps [google/mirror-branch-action](https://github.com/google/mirror-branch-action) from 1.0 to 2.0.
    <details>
    <summary>Commits</summary>
    <ul>
    <li><a href="https://github.com/google/mirror-branch-action/commit/30c52ee21f5d3bd7fb28b95501c11aae7f17eebb"><code>30c52ee</code></a> Update dependencies.</l
i>
    <li><a href="https://github.com/google/mirror-branch-action/commit/4544d8a0903fb21cfbcf4642b793e47f90783d5a"><code>4544d8a</code></a> Update deprecated actio
n environment</li>
    <li><a href="https://github.com/google/mirror-branch-action/commit/884625cd18fadb1bdb646df951a7b486a5d9f3fc"><code>884625c</code></a> Bump node-fetch from 2.
6.0 to 2.6.1</li>
    <li><a href="https://github.com/google/mirror-branch-action/commit/d9fb13d47a8b349b51d369518c798306a6b42669"><code>d9fb13d</code></a> Bump <code>@â<U+0080>
<U+008B>actions/core</code> from 1.2.4 to 1.2.6</li>
    <li><a href="https://github.com/google/mirror-branch-action/commit/4083f5d474abe94ca3b49400e1c55d1d825f08dd"><code>4083f5d</code></a> Unify placeholders in R
EADME.md</li>
    <li><a href="https://github.com/google/mirror-branch-action/commit/394f8d4604fee868b2e256f4ac8ea148a4292806"><code>394f8d4</code></a> Bump lodash from 4.17.1
5 to 4.17.19 (<a href="https://redirect.github.com/google/mirror-branch-action/issues/3">#3</a>)</li>
    <li><a href="https://github.com/google/mirror-branch-action/commit/5d7016e8e9b3ef486f0a0f6dfbbb18c175c0c699"><code>5d7016e</code></a> The sample <code>uses:<
/code> line should reference <a href="https://github.com/v1"><code>@â<U+0080><U+008B>v1</code></a>.0 (<a href="https://redirect.github.com/google/mirror-branch-a
ction/issues/1">#1</a>)</li>
    <li>See full diff in <a href="https://github.com/google/mirror-branch-action/compare/c6b07e441a7ffc5ae15860c1d0a8107a3a151db8...30c52ee21f5d3bd7fb28b95501c11
aae7f17eebb">compare view</a></li>
    </ul>
    </details>
    <br />
    
    [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=google/mirror-branch-action&package-man
ager=github_actions&previous-version=1.0&new-version=2.0)](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`.
    
    ---
    
    <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>
```