chore(deps): bump actions/checkout from 2 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](actions/checkout@v2...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci-markdown-link.yml

@@ -14,7 +14,7 @@ jobs:
       pull-requests: write # required for posting review comments
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # equivalent cli: linkspector check
       - name: Run linkspector

.github/workflows/ci-markdownlint.yml

@@ -10,7 +10,7 @@ jobs:
   markdownlint-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # equivalent cli: markdownlint-cli2  "**/*.md" "#**/CHANGELOG.md"  --config .markdownlint.json
       - name: "Markdown Lint Check"

.github/workflows/ci.yml

@@ -40,7 +40,7 @@ jobs:
     name: ${{ matrix.gem }} / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: "Test Ruby 3.4"
         uses: ./.github/actions/test_gem
         with:
@@ -107,7 +107,7 @@ jobs:
     name: ${{ matrix.gem }} / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: "Test Ruby 3.4"
         if: "${{ matrix.gem != 'opentelemetry-exporter-jaeger' }}"
         uses: ./.github/actions/test_gem
@@ -177,7 +177,7 @@ jobs:
     name: ${{ matrix.gem }} / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: "Test Ruby 3.4"
         uses: ./.github/actions/test_gem
         with:
@@ -218,5 +218,5 @@ jobs:
   codespell:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - run: make codespell

.github/workflows/fossa.yml

@@ -13,7 +13,7 @@ jobs:
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Install Ruby 3.4
         uses: ruby/[email protected]

.github/workflows/ossf-scorecard.yml

@@ -20,7 +20,7 @@ jobs:
       # Needed for GitHub OIDC token if publish_results is true
       id-token: write
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           persist-credentials: false
 

.github/workflows/release-hook-on-closed.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Install Toys
         run: "gem install --no-document toys -v 0.15.5"
       - name: Process release request

.github/workflows/release-hook-on-push.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Install Toys
         run: "gem install --no-document toys -v 0.15.5"
       - name: Update open releases

.github/workflows/release-perform.yml

@@ -31,7 +31,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Install Toys
         run: "gem install --no-document toys -v 0.15.5"
       - name: Perform release

.github/workflows/release-request-weekly.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
       - name: Checkout repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install Toys
         run: "gem install --no-document toys -v 0.15.5"
       - name: Create otelbot app token

.github/workflows/release-request.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           ruby-version: ${{ env.ruby_version }}
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Install Toys
         run: "gem install --no-document toys -v 0.15.5"
       - name: Create otelbot app token