ci: bump actions/checkout to v6 and drop Task 2.x from integration matrix

- actions/checkout@v5 -> @v6 (ci.yml + sync-labels-npm.yml).
- Remove Task 2.x (2.8.1) from integration tests. Task 2.x is years old,
  has no macOS arm64 build (requiring an exclude rule), and its archive
  layout differed from 3.x which made the extraction path fragile.
- Replace with Task 3.50.0 (latest). Task dropped the "Task version: "
  prefix and h1 hash from `--version` output at some point, so the
  expected string is just the bare version number.

Author: vmaerten

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
     name: Lint (oxlint)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -32,7 +32,7 @@ jobs:
     name: Validate tsconfig
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -47,7 +47,7 @@ jobs:
     name: Validate action.yml
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -62,7 +62,7 @@ jobs:
     name: Validate package.json
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -77,7 +77,7 @@ jobs:
     name: Lockfile sync
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -97,7 +97,7 @@ jobs:
       matrix:
         step: [lint, check-links]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -114,7 +114,7 @@ jobs:
     name: oxfmt formatting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -132,7 +132,7 @@ jobs:
       EXPECTED_LICENSE_FILENAME: LICENSE
       EXPECTED_LICENSE_TYPE: GPL-3.0
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ruby
@@ -162,7 +162,7 @@ jobs:
     name: Deps license cache freshness
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - uses: ruby/setup-ruby@v1
@@ -202,7 +202,7 @@ jobs:
     name: Deps license allowlist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: recursive
       - uses: ruby/setup-ruby@v1
@@ -226,7 +226,7 @@ jobs:
     name: Spell check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.9"
@@ -245,7 +245,7 @@ jobs:
       matrix:
         operating-system: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -260,7 +260,7 @@ jobs:
     name: dist bundle up to date
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version-file: package.json
@@ -277,7 +277,7 @@ jobs:
     name: Integration - defaults
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run action with defaults
         uses: ./
       - run: task --version
@@ -290,20 +290,14 @@ jobs:
       matrix:
         runs-on: [ubuntu-latest, windows-latest, macos-latest]
         version:
-          - input: 2.x
-            expected: "Task version: 2.8.1"
           - input: 3.36.x
             expected: "Task version: v3.36.0 (h1:XVJ5hQ5hdzTAulHpAGzbUMUuYr9MUOEQFOFazI3hUsY=)"
           - input: 3.37.2
             expected: "Task version: v3.37.2 (h1:Jwgvo+2vX79Fu+44xPxVKC5DIkUE89QeDjN2tmYaQzA=)"
-        exclude:
-          # Task 2.x has no macOS arm64 build, and macos-latest is Apple Silicon.
-          - runs-on: macos-latest
-            version:
-              input: 2.x
-              expected: "Task version: 2.8.1"
+          - input: 3.50.0
+            expected: "3.50.0"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           version: ${{ matrix.version.input }}
@@ -316,7 +310,7 @@ jobs:
     name: Integration - invalid version rejected
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - id: setup-task
         continue-on-error: true
         uses: ./

.github/workflows/sync-labels-npm.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v5
@@ -114,7 +114,7 @@ jobs:
           echo "::set-output name=flag::--dry-run"
 
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Download configuration file artifacts
         uses: actions/download-artifact@v5