Use the latest minor release for golang 1.21

[cloudxxx8]

The current golang build is based on 1.21.0, and some CVE would be discovered if the binary is built from this version.

$ docker scout cves --format only-packages --only-vuln-packages edgexfoundry/core-metadata:0.0.0-dev

    ✓ Image stored for indexing

    ✓ Indexed 75 packages

    ✗ Detected 2 vulnerable packages with a total of 14 vulnerabilities


        Name        Version   Type            Vulnerabilities            

────────────────────────────────────────────────────────────────────────────

  golang.org/x/net  0.21.0   golang     0C     0H     1M     0L          

  stdlib            1.21.0   golang     0C     4H     4M     0L     6?   

Thus, we should upgrade to use the latest patch version