chore(deps): bump System.Text.Json in /src/PactNet.Abstractions

Bumps System.Text.Json from 8.0.2 to 8.0.5.

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/PactNet.Abstractions/PactNet.Abstractions.csproj

@@ -13,6 +13,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
-    <PackageReference Include="System.Text.Json" Version="8.0.2" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 </Project>