[fix] : pin kubebuilder to v4.2.0 and fix controller-gen

[rahulait]

What this PR does / why we need it:
make build was failing on the main branch when code was checked out into a new directory and devbox shell was invoked.

abc@vm:~$ git clone [email protected]:linode/cluster-api-provider-linode.git test-code
Cloning into 'test-code'...
remote: Enumerating objects: 6821, done.
remote: Counting objects: 100% (1206/1206), done.
remote: Compressing objects: 100% (730/730), done.
remote: Total 6821 (delta 733), reused 750 (delta 431), pack-reused 5615 (from 1)
Receiving objects: 100% (6821/6821), 12.12 MiB | 23.03 MiB/s, done.
Resolving deltas: 100% (4456/4456), done.
abc@vm:~$ cd test-code/
abc@vm:~/test-code$ devbox install
Info: Ensuring packages are installed.
✓ Computed the Devbox environment.
Finished installing packages.
abc@vm:~/test-code$ devbox shell
Starting a devbox shell...
(devbox) abc@vm:~/test-code$ make build
/home/abc/test-code/.devbox/nix/profile/default/bin/controller-gen rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases
Error: unknown option "rbac:roleName=manager-role"
Usage:
  controller-gen [flags]

Flags:
  -h, --help   help for controller-gen
run `controller-gen rbac:roleName=manager-role crd webhook paths=./... output:crd:artifacts:config=config/crd/bases -w` to see all available markers, or `controller-gen rbac:roleName=manager-role crd webhook paths=./... output:crd:artifacts:config=config/crd/bases -h` for usage
make: *** [Makefile:85: generate-manifests] Error 1
(devbox) abc@vm:~/test-code$

This PR fixes the issues and also pins kubebuilder to v4.2.0 as there is a breaking change in v4.3.0
Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

TODOs:

• squashed commits
• includes documentation
• adds unit tests
• adds or updates e2e tests

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.78%. Comparing base (80572d0) to head (8a830ed).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #549   +/-   ##
=======================================
  Coverage   63.78%   63.78%           
=======================================
  Files          79       79           
  Lines        5575     5575           
=======================================
  Hits         3556     3556           
  Misses       1738     1738           
  Partials      281      281           

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