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

Author: renovate[bot]

.github/workflows/release.yaml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: 1.20
       - name: Run GoReleaser

.github/workflows/test.yaml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache: true
           go-version-file: 'go.mod'