Update dependency YamlDotNet to v5.4.0 (#298)

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| YamlDotNet | nuget | minor | `5.3.1` -> `5.4.0` | [source](https://togithub.com/aaubry/YamlDotNet) |

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### Release Notes

<details>
<summary>aaubry/YamlDotNet</summary>

### [`v5.4.0`](https://togithub.com/aaubry/YamlDotNet/compare/v5.3.1...v5.4.0)

[Compare Source](https://togithub.com/aaubry/YamlDotNet/compare/v5.3.1...v5.4.0)

</details>

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---

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src/Promitor.Core.Scraping/Promitor.Core.Scraping.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.9.1" />
     <PackageReference Include="Microsoft.Azure.Management.Fluent" Version="1.19.0" />
     <PackageReference Include="Prometheus.Client" Version="2.2.0" />
-    <PackageReference Include="YamlDotNet" Version="5.3.1" />
+    <PackageReference Include="YamlDotNet" Version="5.4.0" />
   </ItemGroup>
 
   <ItemGroup>

src/Promitor.Core/Promitor.Core.csproj

@@ -16,7 +16,7 @@
   <ItemGroup>
     <PackageReference Include="Guard.Net" Version="1.2.0" />
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.9.1" />
-    <PackageReference Include="YamlDotNet" Version="5.3.1" />
+    <PackageReference Include="YamlDotNet" Version="5.4.0" />
   </ItemGroup>
 
 </Project>

src/Promitor.Scraper.Host/Promitor.Scraper.Host.csproj

@@ -39,7 +39,7 @@
     <PackageReference Include="Swashbuckle.AspNetCore" Version="4.0.1" />
     <PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="4.0.1" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
-    <PackageReference Include="YamlDotNet" Version="5.3.1" />
+    <PackageReference Include="YamlDotNet" Version="5.4.0" />
   </ItemGroup>
 
   <ItemGroup>