Bump actions/setup-go from 4 to 5 (#10)

Author: dependabot[bot]

.github/workflows/go.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version: 1.21.x
 
@@ -40,7 +40,7 @@ jobs:
           repository: elastic/integrations
           path: integrations
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         id: setup_go
         with:
           go-version: ${{ matrix.go }}