Improved sonar properties file

Dockerfile

-FROM golang:1.24 as builder
+FROM golang:1.24 AS builder
 WORKDIR /
 RUN apt-get update && apt-get install unzip
 RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v29.1/protoc-29.1-linux-x86_64.zip
@@ -29,9 +29,6 @@ RUN CGO_ENABLED=0 GOOS=linux go test ./...
 WORKDIR /build/pkg/cmd/server
 RUN CGO_ENABLED=0 GOOS=linux go build
 
-RUN cat /build/go.mod
-RUN cat /build/go.sum
-
 FROM alpine:latest
 MAINTAINER nmaas@lists.geant.org
 COPY --from=builder /build/pkg/cmd/server/server /go/bin/nmaas-janitor

sonar-project.properties

-# must be unique in a given SonarQube instance
-#sonar.projectKey=my:project
+sonar.sources=.
+sonar.exclusions=**/*_test.go
 
-# --- optional properties ---
-
-# defaults to project key
-#sonar.projectName=My project
-# defaults to 'not provided'
-#sonar.projectVersion=1.0
-
-# Path is relative to the sonar-project.properties file. Defaults to .
-#sonar.sources=.
-
-# Encoding of the source code. Default is default system encoding
-#sonar.sourceEncoding=UTF-8
\ No newline at end of file
+sonar.tests=.
+sonar.test.inclusions=**/*_test.go
\ No newline at end of file