Bump byte-buddy-dep from 1.12.20 to 1.12.21 in /examples/distro (#7514)

Bumps [byte-buddy-dep](https://github.com/raphw/byte-buddy) from 1.12.20
to 1.12.21.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/raphw/byte-buddy/releases">byte-buddy-dep's
releases</a>.</em></p>
<blockquote>
<h2>Byte Buddy 1.12.21</h2>
<ul>
<li>Create a Gradle source set for each JVM build automatically to
reduce boilerplate.</li>
<li>Fix Gradle plugin class loading to use correct class loader.</li>
<li>Use updated release plugin to avoid outdated timestamp in jar.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/raphw/byte-buddy/blob/master/release-notes.md">byte-buddy-dep's
changelog</a>.</em></p>
<blockquote>
<h2>Byte Buddy release notes</h2>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="adb0638f70"><code>adb0638</code></a>
[maven-release-plugin] prepare release byte-buddy-1.12.21</li>
<li><a
href="f326a3e909"><code>f326a3e</code></a>
[release] Release new version</li>
<li><a
href="5ffe97cd98"><code>5ffe97c</code></a>
Correct class loading and use maybe create for configuration.</li>
<li><a
href="a070a5d19f"><code>a070a5d</code></a>
Avoid class loader creation if not needed.</li>
<li><a
href="cf84b72bd6"><code>cf84b72</code></a>
Adjust plugin to configure implicit source set.</li>
<li><a
href="deae823591"><code>deae823</code></a>
Minor refactoring.</li>
<li><a
href="283c195c26"><code>283c195</code></a>
Avoid skipping Gradle plugin if no transformations are explicitly
configured.</li>
<li><a
href="a305b20987"><code>a305b20</code></a>
Add missing checksums.</li>
<li><a
href="db03b3b7f5"><code>db03b3b</code></a>
Merge pull request <a
href="https://github-redirect.dependabot.com/raphw/byte-buddy/issues/1381">#1381</a>
from 0dinD/fix-gitignore-build-dir</li>
<li><a
href="4a7fbb1ef8"><code>4a7fbb1</code></a>
Fix .gitignore rule for Gradle build directory</li>
<li>Additional commits viewable in <a
href="https://github.com/raphw/byte-buddy/compare/byte-buddy-1.12.20...byte-buddy-1.12.21">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=net.bytebuddy:byte-buddy-dep&package-manager=gradle&previous-version=1.12.20&new-version=1.12.21)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

You can trigger a rebase of this PR 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>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/distro/build.gradle

@@ -33,7 +33,7 @@ subprojects {
       opentelemetryJavaagent     : "1.22.0-SNAPSHOT",
       opentelemetryJavaagentAlpha: "1.22.0-alpha-SNAPSHOT",
 
-      bytebuddy                  : "1.12.20",
+      bytebuddy                  : "1.12.21",
       autoservice                : "1.0.1",
       junit                      : "5.9.1"
     ]