fixing pm2 tests + adding pkg config tests

internal/pkg/pm2/unoconv_test.go

@@ -4,16 +4,17 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"github.com/thecodingmachine/gotenberg/test"
 )
 
 func TestUnoconvStart(t *testing.T) {
-	p := NewUnoconv(false)
+	p := NewUnoconv(test.CreateTestLogger())
 	err := p.Start()
 	require.Nil(t, err)
 }
 
 func TestUnoconvShutdown(t *testing.T) {
-	p := NewUnoconv(false)
+	p := NewUnoconv(test.CreateTestLogger())
 	err := p.Shutdown()
 	require.Nil(t, err)
 }