chore(deps): update actions/setup-go action to v6

Author: renovate-bot

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.25.5'
           cache-dependency-path: go.sum
@@ -28,7 +28,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.25.5'
           cache-dependency-path: go.sum
@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.25.5'
           cache-dependency-path: go.sum
@@ -63,7 +63,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.25.5'
           cache-dependency-path: go.sum