fix: ignoring windows signing operations on feature branches (non-e2e test)

[dotkas]

Pull Request Submission Checklist

• Follows CONTRIBUTING guidelines
• Commit messages
  are release-note ready, emphasizing
  what was changed, not how.
• Includes detailed description of changes
• Contains risk assessment (Low | Medium | High)
• Highlights breaking API changes (if applicable)
• Links to automated tests covering new functionality
• Includes manual testing instructions (if necessary)
• Updates relevant GitBook documentation (PR link: ___)
• Includes product update to be announced in the next stable release notes

What does this PR do?

Stops the digicert signing process on non-feature branches by simply removing the context containing credentials.

Where should the reviewer start?

The CircleCI pipeline file as well as my comments try to elaborate. A full end-to-end version has been created to prove no regressions: #6132

How should this be manually tested?

N/A, see e2e runs.

What's the product update that needs to be communicated to CLI users?

N/A, pipeline optimization.

[snyk-io]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)

✅ code/snyk check is complete. No issues have been found. (View Details)

[dotkas]

If credentials are not available, we just skip the signing part and continue:

cli/cliv2/scripts/sign_windows.ps1

Lines 18 to 22 in c17867b

	# if the required secrets are not available we skip signing completely without an error to enable local builds on windows. A later issigned check will catch this error in the build pipeline
	if (-Not (Test-Path env:SM_CODE_SIGNING_CERT_SHA1_HASH)) {
	Write-Host "$LOG_PREFIX Skipping signing, since the required secrets are not available."
	exit
	}

[dotkas]

Both steps gets called during windows-make in

cli/.circleci/config.yml

Lines 723 to 738 in 58a7d5a

	- sign:
	name: sign windows amd64
	context: snyk-windows-signing
	requires:
	- build windows amd64
	go_os: windows
	go_arch: amd64
	make_target: sign sign-fips
	executor: win-server2022-amd64
	install_deps_extension: windows-make
	filters:
	branches:
	only:
	- main
	- '/release.*/'
	- '/.*e2e.*/'