Update actions/checkout action to v5 (#159)

Author: renovate[bot]

.github/workflows/gradle-wrapper.yaml

@@ -11,5 +11,5 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: gradle/wrapper-validation-action@v3

.github/workflows/release.yaml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'

.github/workflows/test.yaml

@@ -43,7 +43,7 @@ jobs:
 
     runs-on: ${{matrix.os}}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
@@ -54,7 +54,7 @@ jobs:
   kmp-missing-targets:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
@@ -64,7 +64,7 @@ jobs:
   abi-validation:
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'