Update ruby/setup-ruby action to v1.284.0 (#749)

This PR contains the following updates:

| Package | Type | Update | Change | Pending |
|---|---|---|---|---|
| [ruby/setup-ruby](https://redirect.github.com/ruby/setup-ruby) |
action | minor | `v1.283.0` → `v1.284.0` | `v1.286.0` (+1) |

---

### Release Notes

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

###
[`v1.284.0`](https://redirect.github.com/ruby/setup-ruby/releases/tag/v1.284.0)

[Compare
Source](https://redirect.github.com/ruby/setup-ruby/compare/v1.283.0...v1.284.0)

#### What's Changed

- Fix compatibility to ruby-3.2 by
[@&#8203;larskanis](https://redirect.github.com/larskanis) in
[#&#8203;861](https://redirect.github.com/ruby/setup-ruby/pull/861)

**Full Changelog**:
<ruby/setup-ruby@v1.283.0...v1.284.0>

</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:eyJjcmVhdGVkSW5WZXIiOiI0Mi45Mi4xIiwidXBkYXRlZEluVmVyIjoiNDIuOTIuMSIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJkZXBlbmRlbmN5IHVwZ3JhZGUiXX0=-->

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@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: ruby/setup-ruby@708024e6c902387ab41de36e1669e43b5ee7085e # v1.283.0
+      - uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
         with:
           ruby-version: '3.4.8'
       - run: bundle install

.github/workflows/publish.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: ruby/setup-ruby@708024e6c902387ab41de36e1669e43b5ee7085e # v1.283.0
+      - uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
         with:
           bundler-cache: true
           ruby-version: 3.4.8

.github/workflows/pull_request.yml

@@ -23,7 +23,7 @@ jobs:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         submodules: true
-    - uses: ruby/setup-ruby@708024e6c902387ab41de36e1669e43b5ee7085e # v1.283.0
+    - uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
       with:
         ruby-version: ${{ matrix.ruby }}
     - uses: actions/setup-java@f2beeb24e141e01a676f977032f5a29d81c9e27e # v5.1.0