Bump symbolic from 10.2.0 to 12.1.1 in /src/agent (#3161)

* Bump symbolic from 10.2.0 to 12.1.1 in /src/agent

Bumps [symbolic](https://github.com/getsentry/symbolic) from 10.2.0 to 12.1.1.
- [Release notes](https://github.com/getsentry/symbolic/releases)
- [Changelog](https://github.com/getsentry/symbolic/blob/master/CHANGELOG.md)
- [Commits](getsentry/symbolic@10.2.0...12.1.1)

---
updated-dependencies:
- dependency-name: symbolic
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update backtrace to remove dupe gimli

* Update goblin to remove dupe

* Update symbolic again

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