updated lima config ssh forwardAgent true by default

[johnkraczek]

Fixes #402

Setting the ssh: forwardAgent: true in the lima config allows the agent to be forwarded.
If you are good with that being the default then that's all that is needed.

[swalkinshaw]

I'm good with this being the default. I can't see why we'd want it be disabled but we can always make it configurable in the future 👍

@johnkraczek there's a test that needs to be updated as well:

trellis-cli/pkg/lima/instance_test.go

Lines 13 to 88 in 4a8d8ac

	func TestCreateConfig(t *testing.T) {
	defer trellis.LoadFixtureProject(t)()
	trellis := trellis.NewTrellis()
	if err := trellis.LoadProject(); err != nil {
	t.Fatal(err)
	}
	dir := t.TempDir()
	configFile := filepath.Join(dir, "lima.yaml")
	instance := &Instance{
	Dir: dir,
	ConfigFile: configFile,
	Config: Config{
	Images: []Image{
	{
	Location: "http://ubuntu.com/focal",
	Arch: "aarch64",
	},
	},
	PortForwards: []PortForward{
	{
	HostPort: 1234,
	GuestPort: 80,
	},
	},
	},
	Sites: trellis.Environments["development"].WordPressSites,
	}
	err := instance.CreateConfig()
	if err != nil {
	t.Fatal(err)
	}
	content, err := os.ReadFile(configFile)
	if err != nil {
	t.Fatal(err)
	}
	absSitePath := filepath.Join(trellis.Path, "../site")
	expected := fmt.Sprintf(`vmType: "vz"
	rosetta:
	enabled: false
	images:
	- location: http://ubuntu.com/focal
	arch: aarch64
	mounts:
	- location: %s
	mountPoint: /srv/www/example.com/current
	writable: true
	mountType: "virtiofs"
	networks:
	- vzNAT: true
	portForwards:
	- guestPort: 80
	hostPort: 1234
	containerd:
	user: false
	provision:
	- mode: system
	script: |
	#!/bin/bash
	echo "127.0.0.1 $(hostname)" >> /etc/hosts
	`, absSitePath)
	if string(content) != expected {
	t.Errorf("expected %s\ngot %s", expected, string(content))
	}
	}

The expected output needs to have the new ssh entry

[swalkinshaw]

Thank you!