Update prerelease.yaml (#3300)

.github/workflows/prerelease.yaml

@@ -114,7 +114,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.20.5
       - name: Set up Node
         uses: actions/setup-node@v3
         with:
@@ -184,7 +184,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
+          go-version: 1.20.5
       - name: Write Dashboard Environment Variables
         run: |
           cat >./dashboard/.env <<EOL