fix(ci): cache Go SDK + disable setup-go built-in cache

.gitea/workflows/build_device_agent.yaml

@@ -22,6 +22,7 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version: '1.26'
+          cache: false
 
       - uses: https://gitea.com/actions/go-hashfiles@v0.0.1
         id: hash-go
@@ -33,6 +34,7 @@ jobs:
       - uses: actions/cache@v3
         with:
           path: |
+            /toolcache/go
             /root/go/pkg/mod
             /root/.cache/go-build
           key: go-device-agent-${{ steps.hash-go.outputs.hash }}

.gitea/workflows/build_server_core.yaml

@@ -22,6 +22,7 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version: '1.26'
+          cache: false
 
       - uses: https://gitea.com/actions/go-hashfiles@v0.0.1
         id: hash-go
@@ -33,6 +34,7 @@ jobs:
       - uses: actions/cache@v3
         with:
           path: |
+            /toolcache/go
             /root/go/pkg/mod
             /root/.cache/go-build
           key: go-server-core-${{ steps.hash-go.outputs.hash }}