feat: Introduce go-version file to support multiple go versions on CI (#25271)

.github/workflows/server-ci-pr.yml

@@ -5,8 +5,7 @@ on:
       - "server/**"
       - "e2e-tests/**"
       - ".github/**"
-env:
-  go-version: "1.20.7"
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true