Fix publishcontainers build target after Api project merge (#3352)

Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

build/Targets.fs

@@ -135,7 +135,7 @@ let private publishContainers _ =
         exec { run "dotnet" (args @ registry) }
     createImage "src/tooling/docs-builder/docs-builder.csproj" "docs-builder"
     createImage "src/api/Elastic.Documentation.Mcp.Remote/Elastic.Documentation.Mcp.Remote.csproj" "docs-builder-mcp"
-    createImage "src/api/Elastic.Documentation.Api.App/Elastic.Documentation.Api.App.csproj" "docs-builder-api"
+    createImage "src/api/Elastic.Documentation.Api/Elastic.Documentation.Api.csproj" "docs-builder-api"
 
 let private runTests (testSuite: TestSuite) _ =
     let testFilter =