Bump actions/setup-go from 2.2.0 to 3 (vmware-tanzu#221)

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/[email protected]
-    - uses: actions/setup-go@v2.2.0
+    - uses: actions/setup-go@v3
       with:
         go-version: 1.15.x
     - name: Test
@@ -35,7 +35,7 @@ jobs:
       BUNDLE: registry.local:5000/service-bindings/bundle
     steps:
     - uses: actions/[email protected]
-    - uses: actions/setup-go@v2.2.0
+    - uses: actions/setup-go@v3
       with:
         go-version: 1.15.x
     - uses: vmware-tanzu/carvel-setup-action@v1