pre-push hook is broken

[Kevlar]

What happened:

$ git push personal
.git/hooks/pre-push: line 11: ./verify/verify-boilerplate.sh: No such file or directory

What you expected to happen:
Successful execution of pre-push hook

How to reproduce it (as minimally and precisely as possible):

$ git clone git@github.com:kubernetes/perf-tests.git
$ cd perf-tests
$ cp _hook/pre-push .git/hooks/pre-push
$ git remote add <remote name> <somewhere you have permission to push>
$ git push <above remote name>

Anything else we need to know?:

Environment:

• Kubernetes version (use kubectl version): n/a
• Cloud provider or hardware configuration: n/a
• OS (e.g: cat /etc/os-release): Ubuntu 24.04.2 LTS
• Kernel (e.g. uname -a): 6.11.0-26-generic
• Install tools: git
• Network plugin and version (if this is a network-related bug): n/a
• Others:

[Kevlar]

It looks like this is running into:

1. Pathing issues - we use:
   GIT_ROOT=$(dirname "${BASH_SOURCE[0]}")/../
   to path vs something robust to where it is run like:
   GIT_ROOT=$(git rev-parse --show-toplevel)

2. Outdated verify script names:
   It looks like pre-push points to:
   ./verify/verify-golint.sh
   which looks like it was removed here in May 2020