build(deps): Bump Whisper.net.Runtime in the all group (#185)

Bumps the all group with 1 update: [Whisper.net.Runtime](https://github.com/sandrohanea/whisper.net).


Updates `Whisper.net.Runtime` from 1.7.4 to 1.8.1
- [Release notes](https://github.com/sandrohanea/whisper.net/releases)
- [Commits](sandrohanea/whisper.net@1.7.4...1.8.1)

---
updated-dependencies:
- dependency-name: Whisper.net.Runtime
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -77,6 +77,6 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>
     <PackageVersion Include="Whisper.net" Version="1.7.4" />
-    <PackageVersion Include="Whisper.net.Runtime" Version="1.7.4" />
+    <PackageVersion Include="Whisper.net.Runtime" Version="1.8.1" />
   </ItemGroup>
 </Project>