Bump Nito.Disposables from 2.2.1 to 2.3.0

Bumps [Nito.Disposables](https://github.com/StephenCleary/Disposables) from 2.2.1 to 2.3.0.
- [Release notes](https://github.com/StephenCleary/Disposables/releases)
- [Changelog](https://github.com/StephenCleary/Disposables/blob/master/CHANGELOG.md)
- [Commits](https://github.com/StephenCleary/Disposables/compare/v2.2.1...v2.3.0)

---
updated-dependencies:
- dependency-name: Nito.Disposables
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Discord Media Loader/packages.config

@@ -13,7 +13,7 @@
   <package id="Nito.AsyncEx.Tasks" version="5.1.2" targetFramework="net461" />
   <package id="Nito.Cancellation" version="1.1.2" targetFramework="net461" />
   <package id="Nito.Collections.Deque" version="1.1.1" targetFramework="net461" />
-  <package id="Nito.Disposables" version="2.2.1" targetFramework="net461" />
+  <package id="Nito.Disposables" version="2.3.0" targetFramework="net461" />
   <package id="Octokit" version="0.50.0" targetFramework="net461" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net461" />
   <package id="System.Collections.Immutable" version="5.0.0" targetFramework="net461" />