Add a version to kubectl vendored in Zarf (#1620)

## Description

This adds a version to `zarf tools kubectl version` to prevent errors.
Currently this is a 0.0.0 version with the zarf version postpended -
this could be changed later, though the kubectl version in go.mod may be
difficult to keep in sync and it should be clear that this is kubectl
built into zarf, not normal kubectl.


![image](https://user-images.githubusercontent.com/3977569/232912615-7c0f2137-a309-4a73-b520-ccaf23252fa1.png)

## Related Issue

Fixes #1614 

## Type of change

- [X] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Other (security config, docs update, etc)

## Checklist before merging

- [X] Test, docs, adr added or updated as needed
- [X] [Contributor Guide
Steps](https://github.com/defenseunicorns/zarf/blob/main/CONTRIBUTING.md#developer-workflow)
followed

Makefile

@@ -26,7 +26,9 @@ else
 endif
 
 CLI_VERSION := $(if $(shell git describe --tags),$(shell git describe --tags),"UnknownVersion")
-BUILD_ARGS := -s -w -X 'github.com/defenseunicorns/zarf/src/config.CLIVersion=$(CLI_VERSION)'
+GIT_SHA := $(if $(shell git rev-parse HEAD),$(shell git rev-parse HEAD),"")
+BUILD_DATE := $(shell date -u +'%Y-%m-%dT%H:%M:%SZ')
+BUILD_ARGS := -s -w -X 'github.com/defenseunicorns/zarf/src/config.CLIVersion=$(CLI_VERSION)' -X 'k8s.io/component-base/version.gitVersion=v0.0.0+zarf$(CLI_VERSION)' -X 'k8s.io/component-base/version.gitCommit=$(GIT_SHA)' -X 'k8s.io/component-base/version.buildDate=$(BUILD_DATE)'
 .DEFAULT_GOAL := help
 
 .PHONY: help