Update actions/checkout action to v5 (#41)

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

Author: renovate[bot]

.github/workflows/test-go.yml

@@ -25,7 +25,7 @@ jobs:
             go: '1.17.x'
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Go
       uses: actions/setup-go@v5
       with:

.github/workflows/test-ruby.yml

@@ -25,7 +25,7 @@ jobs:
             ruby: "3.1"
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1

.github/workflows/test-testdata.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - uses: actions/setup-node@v4
       with: