chore(deps): update actions/checkout action to v6 (#550)

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

Author: renovate[bot]

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
           - ./ember-statechart-component
           - ./test-app
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
       - run: cd ${{ matrix.path }} && pnpm run lint
 
@@ -29,7 +29,7 @@ jobs:
     timeout-minutes: 5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
       - run: pnpm --filter test-app run test:ember
 
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: tests
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
         with:
           args: '--no-lockfile'
@@ -86,7 +86,7 @@ jobs:
           - [email protected]
           - [email protected]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
       - name: Update TS Version
         run: pnpm add --save-dev ${{ matrix.typescript-scenario }}

.github/workflows/codeql.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/plan-release.yml

@@ -21,7 +21,7 @@ jobs:
       command: ${{ steps.check-release.outputs.command }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           ref: 'main'
@@ -46,7 +46,7 @@ jobs:
     if: (github.event_name == 'push' && needs.check-plan.outputs.command != 'release') || (github.event_name == 'pull_request_target' && github.event.pull_request.merged == true)
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         # We need to download lots of history so that
         # github-changelog can discover what's changed since the last release
         with:

.github/workflows/publish.yml

@@ -23,7 +23,7 @@ jobs:
       command: ${{ steps.check-release.outputs.command }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           ref: 'main'
@@ -43,7 +43,7 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
         with:
           # This creates an .npmrc that reads the NODE_AUTH_TOKEN environment variable