chore: Enable go cache

Author: koki-develop

.github/actions/setup/action.yml

@@ -7,3 +7,11 @@ runs:
     - uses: jdx/mise-action@c94f0bf9e520b150e34c017db785461f7e71c5fb # v2.2.2
       with:
         experimental: true
+    - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-