chore(deps): update actions/checkout action to v4 (#187)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action |
major | `v3.6.0` -> `v4.1.1` |
| [actions/checkout](https://togithub.com/actions/checkout) | action |
major | `v3` -> `v4` |

---

### Release Notes

<details>
<summary>actions/checkout (actions/checkout)</summary>

###
[`v4.1.1`](https://togithub.com/actions/checkout/releases/tag/v4.1.1)

[Compare
Source](https://togithub.com/actions/checkout/compare/v4.1.0...v4.1.1)

##### What's Changed

- Update CODEOWNERS to Launch team by
[@&#8203;joshmgross](https://togithub.com/joshmgross) in
[actions/checkout#1510
- Correct link to GitHub Docs by
[@&#8203;peterbe](https://togithub.com/peterbe) in
[actions/checkout#1511
- Link to release page from what's new section by
[@&#8203;cory-miller](https://togithub.com/cory-miller) in
[actions/checkout#1514

##### New Contributors

- [@&#8203;joshmgross](https://togithub.com/joshmgross) made their first
contribution in
[actions/checkout#1510
- [@&#8203;peterbe](https://togithub.com/peterbe) made their first
contribution in
[actions/checkout#1511

**Full Changelog**:
actions/checkout@v4.1.0...v4.1.1

###
[`v4.1.0`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v410)

[Compare
Source](https://togithub.com/actions/checkout/compare/v4.0.0...v4.1.0)

- [Add support for partial checkout
filters](https://togithub.com/actions/checkout/pull/1396)

###
[`v4.0.0`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v400)

[Compare
Source](https://togithub.com/actions/checkout/compare/v3.6.0...v4.0.0)

- [Support fetching without the --progress
option](https://togithub.com/actions/checkout/pull/1067)
-   [Update to node20](https://togithub.com/actions/checkout/pull/1436)

</details>

---

### Configuration

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Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these
updates again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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.github/workflows/pull-request.yml

@@ -10,7 +10,7 @@ jobs:
     name: Check shell scripts
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38 # 2.0.0
 
@@ -20,7 +20,7 @@ jobs:
       image: rhysd/actionlint:1.6.23
       options: --cpus 1 --user root
     steps:
-      - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: Validate Github workflows
         run: |
           mkdir .git
@@ -29,7 +29,7 @@ jobs:
   lint-markdown:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: Validate Markdown file
         run: |
           npm install -g markdownlint-cli

.github/workflows/slash_ops_commands.yml

@@ -44,7 +44,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout branch
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           ref: "refs/pull/${{ github.event.client_payload.slash_command.args.named.pull_request_number }}/head"
       - run: |

.github/workflows/terraform-tfsec.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Clone repo
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Run tfsec
         uses: tfsec/tfsec-sarif-action@21ded20e8ca120cd9d3d6ab04ef746477542a608 # v0.1.4

.github/workflows/terraform.yml

@@ -21,7 +21,7 @@ jobs:
       run:
         working-directory: ${{ matrix.directories }}
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - uses: hashicorp/setup-terraform@633666f66e0061ca3b725c73b2ec20cd13a8fdd1 # v2.0.3
         with:
@@ -36,7 +36,7 @@ jobs:
   tflint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - uses: actions/cache@6998d139ddd3e68c71e9e398d8e40b71a2f39812 # v3.2.5
         name: Cache plugin dir