Update ruby/setup-ruby action to v1.240.0 (#602)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ruby/setup-ruby](https://redirect.github.com/ruby/setup-ruby) |
action | minor | `v1.239.0` -> `v1.240.0` |

---

### Release Notes

<details>
<summary>ruby/setup-ruby (ruby/setup-ruby)</summary>

###
[`v1.240.0`](https://redirect.github.com/ruby/setup-ruby/releases/tag/v1.240.0)

[Compare
Source](https://redirect.github.com/ruby/setup-ruby/compare/v1.239.0...v1.240.0)

##### What's Changed

- Rewrite ruby/setup-msys2-gcc by
[@&#8203;ntkme](https://redirect.github.com/ntkme) in
[https://github.com/ruby/setup-ruby/pull/762](https://redirect.github.com/ruby/setup-ruby/pull/762)

**Full Changelog**:
ruby/setup-ruby@v1.239.0...v1.240.0

</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-ruby).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MC4xMS4xOCIsInVwZGF0ZWRJblZlciI6IjQwLjExLjE4IiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImRlcGVuZGVuY3kgdXBncmFkZSJdfQ==-->

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

Author: renovate[bot]

.github/workflows/deploy-doc.yml

@@ -17,7 +17,7 @@ jobs:
       issues: write
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: ruby/setup-ruby@84684c07c1965536eb4802c8daf1a77968df0cb1 # v1.239.0
+      - uses: ruby/setup-ruby@1a0ff446f5856bdfec298b61a09727c860d9d480 # v1.240.0
         with:
           ruby-version: '3.4'
       - run: bundle install

.github/workflows/publish.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: ruby/setup-ruby@84684c07c1965536eb4802c8daf1a77968df0cb1 # v1.239.0
+      - uses: ruby/setup-ruby@1a0ff446f5856bdfec298b61a09727c860d9d480 # v1.240.0
         with:
           bundler-cache: true
           ruby-version: 3.3

.github/workflows/pull_request.yml

@@ -23,7 +23,7 @@ jobs:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         submodules: true
-    - uses: ruby/setup-ruby@84684c07c1965536eb4802c8daf1a77968df0cb1 # v1.239.0
+    - uses: ruby/setup-ruby@1a0ff446f5856bdfec298b61a09727c860d9d480 # v1.240.0
       with:
         ruby-version: ${{ matrix.ruby }}
     - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1