Bump Elastic.Clients.Elasticsearch from 9.0.7 to 9.1.4

---
updated-dependencies:
- dependency-name: Elastic.Clients.Elasticsearch
  dependency-version: 9.1.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/Charon.Elastic/Charon.Elastic.csproj

@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Elastic.Clients.Elasticsearch" Version="9.0.7" />
+    <PackageReference Include="Elastic.Clients.Elasticsearch" Version="9.1.4" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Charon.Core\Charon.Core.csproj" />