Remove extra build step

[orouz]

looks like Build already includes a call to BuildOpaBundle:

cloudbeat/magefile.go

Lines 81 to 84 in 48e17af

	func Build() error {
	mg.Deps(BuildOpaBundle)
	return devtools.Build(devtools.DefaultBuildArgs())
	}

[mergify]

This pull request does not have a backport label. Could you fix it @orouz? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 8./d branch. /d is the digit
  NOTE: backport-skip has been added to this pull request.

[github-actions]

📊 Allure Report - 💚 No failures were reported.

Result	Count
🟥 Failed	0
🟩 Passed	39
⬜ Skipped	1

[orouz]

the bundle is removed after the function is done, looks like it's just there to ensure the build successeds. maybe we can remove the dep from Build()? it removes the temp dir, bundle is kept

cloudbeat/magefile.go

Lines 353 to 359 in 763e703

	defer func() {
	rmErr := os.RemoveAll(cspPoliciesPkgDir)
	if rmErr != nil && err == nil {
	err = rmErr
	}
	signal.Stop(c)
	}()

@orestisfl wdyt?