chore(deps): update actions/checkout action to v6.0.3 (#371)

This PR contains the following updates:

| Package | Type | Update | Change |
|
---

## Generated Summary

- Updated actions/checkout from v6.0.2 to v6.0.3 in multiple GitHub
workflow files.
- Modified workflows include:
  - meta-sync-labels.yaml
  - renovate.yaml
  - rigging_pr_description.yml
  - semgrep.yaml
- Ensures the latest version of the checkout action is used for
repository cloning.

This summary was generated with ❤️ by
[rigging](https://docs.dreadnode.io/rigging/)

| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | patch | `v6.0.2` → `v6.0.3` |

---

### Release Notes

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

###
[`v6.0.3`](https://redirect.github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v603)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v6.0.2...v6.0.3)

- Fix checkout init for SHA-256 repositories by
[@&#8203;yaananth](https://redirect.github.com/yaananth) in
[#&#8203;2439](https://redirect.github.com/actions/checkout/pull/2439)
- fix: expand merge commit SHA regex and add SHA-256 test cases by
[@&#8203;yaananth](https://redirect.github.com/yaananth) in
[#&#8203;2414](https://redirect.github.com/actions/checkout/pull/2414)

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

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

---

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

---

This PR has been generated by [Mend
Renovate](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yMDkuMSIsInVwZGF0ZWRJblZlciI6IjQzLjIwOS4xIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Author: GangGreenTemperTatum

.github/workflows/meta-sync-labels.yaml

@@ -25,7 +25,7 @@ jobs:
           private-key: "${{ secrets.BOT_APP_PRIVATE_KEY }}"
 
       - name: Set up git repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           token: "${{ steps.app-token.outputs.token }}"
 

.github/workflows/renovate.yaml

@@ -59,7 +59,7 @@ jobs:
           private-key: "${{ secrets.BOT_APP_PRIVATE_KEY }}"
 
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           token: "${{ steps.app-token.outputs.token }}"
 

.github/workflows/rigging_pr_description.yml

@@ -13,7 +13,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0  # full history for proper diffing
 

.github/workflows/semgrep.yaml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: Set up git repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           token: ${{ secrets.GITHUB_TOKEN }}