Update dependency go to v1.26.4

Author: renovate[bot]

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
 
     - name: Install Go
       uses: actions/setup-go@v3
-      with: { go-version: 1.16.5 }
+      with: { go-version: 1.26.4 }
 
     - name: Install Terraform
       uses: hashicorp/setup-terraform@v2