Update .drone.yml

.drone.yml

@@ -8,6 +8,7 @@ steps:
     image: mcr.microsoft.com/dotnet/sdk:6.0
     commands:
       - apt-get update && apt-get install -y unzip
+      - export PATH="$PATH:/root/.dotnet/tools"
       - dotnet tool install --global dotnet-sonarscanner
       - dotnet sonarscanner begin /k:"$SONAR_PROJECT_KEY" /d:sonar.host.url="$SONAR_HOST" /d:sonar.login="$SONAR_TOKEN" /d:sonar.branch.name="$DRONE_REPO_BRANCH" /d:sonar.analysis.mode=preview
       - dotnet build