Move actions path outside of workdir (#701)

* feat: add option to specify user for exec

* fix: move actions to static path outside workdir

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/runner/run_context_test.go

@@ -316,6 +316,6 @@ func TestGetGitHubContext(t *testing.T) {
 	assert.Equal(t, ghc.Repository, "nektos/act")
 	assert.Equal(t, ghc.RepositoryOwner, "nektos")
 	assert.Equal(t, ghc.RunnerPerflog, "/dev/null")
-	assert.Equal(t, ghc.EventPath, "/tmp/workflow/event.json")
+	assert.Equal(t, ghc.EventPath, ActPath+"/workflow/event.json")
 	assert.Equal(t, ghc.Token, rc.Config.Secrets["GITHUB_TOKEN"])
 }