feat: --container-options (#1462)

* feat: `--container-options`

This deprecates the following options
- `--privileged`
- `--container-cap-add`
- `--container-cap-drop`
- `--container-architecture`
- `--userns`

* Merge binds/mounts, add desc

* avoid linter error

* fix: apply options to step env / deprecate warning

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

act/runner/runner.go

@@ -39,6 +39,7 @@ type Config struct {
 	UsernsMode                         string            // user namespace to use
 	ContainerArchitecture              string            // Desired OS/architecture platform for running containers
 	ContainerDaemonSocket              string            // Path to Docker daemon socket
+	ContainerOptions                   string            // Options for the job container
 	UseGitIgnore                       bool              // controls if paths in .gitignore should not be copied into container, default true
 	GitHubInstance                     string            // GitHub instance to use, default "github.com"
 	ContainerCapAdd                    []string          // list of kernel capabilities to add to the containers