Update actions/checkout action to v3

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	`v2` -> `v3`

Release Notes

actions/checkout

### [`v3`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v302) [Compare Source](https://togithub.com/actions/checkout/compare/v2...v3) - [Add input `set-safe-directory`](https://togithub.com/actions/checkout/pull/770)

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`Terraform Security Scan` Failed

Show Output

```hcl Results #1-2 CRITICAL Firewall rule allows ingress traffic from multiple addresses on the public internet. (2 similar results) ──────────────────────────────────────────────────────────────────────────────── firewall.tf Lines 24-27 ───────┬──────────────────────────────────────────────────────────────────────── 24 │ source_ranges = [ 25 │ "35.191.0.0/16", 26 │ "130.211.0.0/22" 27 │ ] ───────┴──────────────────────────────────────────────────────────────────────── Individual Causes - /github/workspace/firewall.tf:15-39 (google_compute_firewall.this) - /github/workspace/firewall.tf:15-39 (google_compute_firewall.this) ──────────────────────────────────────────────────────────────────────────────── ID google-compute-no-public-ingress Impact The port is exposed for ingress from the internet Resolution Set a more restrictive cidr range More Information - https://aquasecurity.github.io/tfsec/latest/checks/google/compute/no-public-ingress/ - https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/compute_firewall#source_ranges - https://www.terraform.io/docs/providers/google/r/compute_firewall.html ──────────────────────────────────────────────────────────────────────────────── timings ────────────────────────────────────────── disk i/o 146.097µs parsing 1.386579ms adaptation 71.098µs checks 3.924141ms total 5.527915ms counts ────────────────────────────────────────── blocks 15 modules 1 files 7 results ────────────────────────────────────────── ignored 0 excluded 0 critical 2 high 0 medium 0 low 0 2 potential problem(s) detected. ```

nlamirault / terraform-google-traffic-director