ensure latest tag is used for GIT_TAG

[pdabelf5]

Proposed changes

Update to make sure the version variable is the latest tag

$ make build
Docker version 24.0.6, build ed223bc
go version go1.21.4 darwin/arm64
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath -ldflags "-s -w -X main.version=v3.4.0-SNAPSHOT" -o nginx-ingress github.com/nginxinc/kubernetes-ingress/cmd/nginx-ingress

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork