chore: show golang version in the version command

[zhaohuabing]

This PR adds golang version to the version command:

before:

ENVOY_GATEWAY_VERSION: v1.0.2
ENVOY_PROXY_VERSION: distroless-dev
GATEWAYAPI_VERSION: v1.1.0
GIT_COMMIT_ID: a3505782947c5a3da3a586e0f8e1d55d78e86bde

after:

ENVOY_GATEWAY_VERSION: v1.0.2
ENVOY_PROXY_VERSION: distroless-dev
GATEWAYAPI_VERSION: v1.1.0
GIT_COMMIT_ID: a3505782947c5a3da3a586e0f8e1d55d78e86bde
GOLANG_VERSION: go1.22.5

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 69.02%. Comparing base (979f949) to head (a350578).
Report is 1 commits behind head on main.

Files	Patch %	Lines
internal/cmd/version/version.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3750   +/-   ##
=======================================
  Coverage   69.01%   69.02%           
=======================================
  Files         176      176           
  Lines       21719    21741   +22     
=======================================
+ Hits        14990    15007   +17     
- Misses       5650     5653    +3     
- Partials     1079     1081    +2     

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