Update actions/checkout action to v5 (#641)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v4.3.0` -> `v5.0.0` |

---

### Release Notes

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

###
[`v5.0.0`](https://redirect.github.com/actions/checkout/releases/tag/v5.0.0)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v4.3.0...v5.0.0)

##### What's Changed

- Update actions checkout to use node 24 by
[@&#8203;salmanmkc](https://redirect.github.com/salmanmkc) in
[https://github.com/actions/checkout/pull/2226](https://redirect.github.com/actions/checkout/pull/2226)
- Prepare v5.0.0 release by
[@&#8203;salmanmkc](https://redirect.github.com/salmanmkc) in
[https://github.com/actions/checkout/pull/2238](https://redirect.github.com/actions/checkout/pull/2238)

##### ⚠️ Minimum Compatible Runner Version

**v2.327.1**\
[Release
Notes](https://redirect.github.com/actions/runner/releases/tag/v2.327.1)

Make sure your runner is updated to this version or newer to use this
release.

**Full Changelog**:
actions/checkout@v4...v5.0.0

</details>

---

### Configuration

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

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

Author: renovate[bot]

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

@@ -15,7 +15,7 @@ jobs:
     if: github.repository == 'line/line-bot-sdk-ruby'
     steps:
       - name: Check out code
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Run EoL & NewRelease check
         uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1

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

@@ -45,7 +45,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Fetch Latest Release
         id: get-latest-release
         uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1

.github/workflows/deploy-doc.yml

@@ -16,7 +16,7 @@ jobs:
       pages: write
       issues: write
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - uses: ruby/setup-ruby@2a7b30092b0caf9c046252510f9273b4875f3db9 # v1.254.0
         with:
           ruby-version: '3.4'

.github/workflows/generate-code.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       # Setup
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           submodules: recursive
       - name: Update submodules

.github/workflows/label-issue.yml

@@ -13,7 +13,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Add label on issue open
         if: github.event.action == 'opened' || github.event.action == 'reopened'

.github/workflows/publish.yml

@@ -19,7 +19,7 @@ jobs:
       issues: write
 
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - uses: ruby/setup-ruby@2a7b30092b0caf9c046252510f9273b4875f3db9 # v1.254.0
         with:
           bundler-cache: true

.github/workflows/pull_request.yml

@@ -20,7 +20,7 @@ jobs:
           - '3.4'
     name: Ruby v${{ matrix.ruby }}
     steps:
-    - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       with:
         submodules: true
     - uses: ruby/setup-ruby@2a7b30092b0caf9c046252510f9273b4875f3db9 # v1.254.0
@@ -40,7 +40,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Run pinact
         uses: suzuki-shunsuke/pinact-action@49cbd6acd0dbab6a6be2585d1dbdaa43b4410133 # v1.0.0
         with: