Bump Go version to fix vulnerability in std lib

[jjngx]

Proposed changes

This PR fixes the following vulnerabilities in the Go std lib:

➜  kubernetes-ingress git:(main) ✗ govulncheck ./...
Scanning your code and 1060 packages across 100 dependent modules for known vulnerabilities...

=== Symbol Results ===

Vulnerability #1: GO-2024-2824
    Malformed DNS message can cause infinite loop in net
  More info: https://pkg.go.dev/vuln/GO-2024-2824
  Standard library
    Found in: [email protected]
    Fixed in: [email protected]
    Example traces found:
      #1: internal/nginx/verify.go:29:21: nginx.newVerifyClient calls net.Dial
      #2: internal/nginx/verify.go:48:26: nginx.verifyClient.GetConfigVersion calls http.Client.Do, which eventually calls net.Dialer.DialContext
      #3: internal/metrics/listener.go:113:36: metrics.Server.ListenAndServe calls http.Server.ListenAndServeTLS, which calls net.Listen
      #4: internal/k8s/controller.go:265:57: k8s.NewLoadBalancerController calls spiffe.NewX509CertFetcher, which eventually calls net.Resolver.LookupHost
      #5: internal/k8s/controller.go:265:57: k8s.NewLoadBalancerController calls spiffe.NewX509CertFetcher, which eventually calls net.Resolver.LookupSRV
      #6: internal/k8s/controller.go:265:57: k8s.NewLoadBalancerController calls spiffe.NewX509CertFetcher, which eventually calls net.Resolver.LookupTXT

Your code is affected by 1 vulnerability from the Go standard library.
This scan found no other vulnerabilities in packages you import or modules you
require.
Use '-show verbose' for more details.

After updating to Go 1.22.3:

➜  kubernetes-ingress git:(chore/go-version) ✗ govulncheck ./...
Scanning your code and 1060 packages across 100 dependent modules for known vulnerabilities...

No vulnerabilities found.

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