Update Makefile

* skip integration tests in make test
* build act standalone binary
* update gitignore
* mark more tests as integration test

pkg/runner/run_context_test.go

@@ -344,6 +344,10 @@ func TestRunContext_GetBindsAndMounts(t *testing.T) {
 }
 
 func TestGetGitHubContext(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test")
+	}
+
 	log.SetLevel(log.DebugLevel)
 
 	cwd, err := os.Getwd()