Update to actions/checkout@v4

Author: eregon

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - name: Clone TruffleRuby
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0 # Necessary for jt check_abi
     - name: Setup system Ruby
@@ -48,7 +48,7 @@ jobs:
         working-directory: build
     steps:
     - name: Clone TruffleRuby
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         path: build
     - name: Setup system Ruby
@@ -89,7 +89,7 @@ jobs:
         working-directory: build
     steps:
       - name: Clone TruffleRuby
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: build
       - name: Setup system Ruby
@@ -131,7 +131,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - name: Clone TruffleRuby
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Setup system Ruby
       uses: ruby/setup-ruby@v1
     - name: Setup jt
@@ -158,7 +158,7 @@ jobs:
         - :library :cext :security :command_line :tracepoint # command_line ~5min, others < 2min
     steps:
       - name: Clone TruffleRuby
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup system Ruby
         uses: ruby/setup-ruby@v1
       - name: Setup jt
@@ -177,7 +177,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Clone TruffleRuby
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup system Ruby
         uses: ruby/setup-ruby@v1
       - name: Setup jt
@@ -196,7 +196,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Clone TruffleRuby
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup system Ruby
         uses: ruby/setup-ruby@v1
       - name: Setup jt
@@ -222,7 +222,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Clone TruffleRuby
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup system Ruby
         uses: ruby/setup-ruby@v1
       - name: Setup jt
@@ -245,7 +245,7 @@ jobs:
         ruby: ['3.0', '3.1', '3.2']
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}

doc/user/testing-truffleruby-in-ci.md

@@ -18,10 +18,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ 2.6, truffleruby, truffleruby-head ]
+        ruby: [ '3.2', truffleruby, truffleruby-head ]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}