fix: update the go version in member agent

[zhiying-lin]

What type of PR is this?
/kind bug

What this PR does / why we need it:
fix the image build failure

Which issue(s) this PR fixes:

Fixes #

Requirements:

• run make reviewable for basic local test
• Read and followed fleet-networking's Code of conduct.
• uses conventional commit messages
• includes documentation
• adds unit tests

How has this code been tested

Special notes for your reviewer

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.33%. Comparing base (5c4bf40) to head (2a9bafd).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #280      +/-   ##
==========================================
+ Coverage   80.23%   80.33%   +0.10%     
==========================================
  Files          29       29              
  Lines        3986     3986              
==========================================
+ Hits         3198     3202       +4     
+ Misses        629      626       -3     
+ Partials      159      158       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.