chore(deps): update actions/checkout action to v6.0.1 (#892)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | patch | `v6.0.0` -> `v6.0.1` |

---

### Release Notes

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

###
[`v6.0.1`](https://redirect.github.com/actions/checkout/compare/v6.0.0...v6.0.1)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v6.0.0...v6.0.1)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **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 this update
again.

---

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

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/line/line-bot-sdk-python).

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/auto-testing.yml

@@ -23,7 +23,7 @@ jobs:
           - '3.13'
           - '3.14'
     steps:
-    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       with:
         submodules: true
     - name: Set up Python ${{ matrix.python-version }}
@@ -58,7 +58,7 @@ jobs:
           - '3.13'
           - '3.14'
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           submodules: true
       - name: Set up Python ${{ matrix.python-version }}
@@ -77,7 +77,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Run pinact
         uses: suzuki-shunsuke/pinact-action@49cbd6acd0dbab6a6be2585d1dbdaa43b4410133 # v1.0.0
         with:

.github/workflows/check-eol-newrelease.yml

@@ -15,7 +15,7 @@ jobs:
     if: github.repository == 'line/line-bot-sdk-python'
     steps:
       - name: Check out code
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Run EoL & NewRelease check
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0

.github/workflows/create-draft-release.yml

@@ -45,7 +45,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Fetch Latest Release
         id: get-latest-release
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0

.github/workflows/generate-code.yml

@@ -16,7 +16,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Setup
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           submodules: recursive
       - name: Update submodules

.github/workflows/label-issue.yml

@@ -13,7 +13,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Add label on issue open
         if: github.event.action == 'opened' || github.event.action == 'reopened'

.github/workflows/publish-to-pypi.yml

@@ -18,7 +18,7 @@ jobs:
     permissions:
       issues: write
     steps:
-    - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       with:
         submodules: true
     - name: Set up Python