deps: update actions/checkout action to v4 (#2608)

Author: renovate-bot

.github/workflows/ci.yaml

@@ -27,7 +27,7 @@ jobs:
       matrix:
         java: [11, 17]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
@@ -41,7 +41,7 @@ jobs:
     name: "units (8)"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         java-version: 8
@@ -58,7 +58,7 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         java-version: 8
@@ -81,7 +81,7 @@ jobs:
       matrix:
         java: [17]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
@@ -91,7 +91,7 @@ jobs:
   javadoc:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
@@ -103,7 +103,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
@@ -115,7 +115,7 @@ jobs:
   clirr:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         distribution: temurin

.github/workflows/integration-tests-against-emulator.yaml

@@ -16,7 +16,7 @@ jobs:
           - 9020:9020
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: stCarolas/setup-maven@v4
       with:
         maven-version: 3.8.1

.github/workflows/samples.yaml

@@ -5,7 +5,7 @@ jobs:
   checkstyle:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v1
         with:
           java-version: 8
@@ -16,7 +16,7 @@ jobs:
     name: "compile (8)"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         # Java 11 to generate class file targeting  Java 8
@@ -38,7 +38,7 @@ jobs:
       matrix:
         java: [11, 17]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: actions/setup-java@v3
       with:
         java-version: ${{matrix.java}}