Bump Cert-manager version in installation documentation

[github-actions]

Bump Cert-manager version in installation documentation

docs: update cert-manager referenced version v1.18.2

2 file(s) updated with "https://github.com/cert-manager/cert-manager/releases/download/v1.18.2/": * docs/installation/other_inst_scenarios/install_epinio_on_rancher_desktop.md * docs/tutorials/single-dev-workflow.md

v1.18.2

cert-manager is the easiest way to automatically manage certificates in Kubernetes and OpenShift clusters.

We fixed a bug in the CSR's name constraints construction (only applies if you have enabled the `NameConstraints` feature gate).
We dropped the new `global.rbac.disableHTTPChallengesRole` Helm option due to a bug we found, this feature will be released in `v1.19` instead.

Changes since `v1.18.1`:

### Bug or Regression

- BUGFIX: permitted URI domains were incorrectly used to set the excluded URI domains in the CSR's name constraints (#7833, @cert-manager-bot)
- Reverted adding the `global.rbac.disableHTTPChallengesRole` Helm option. (#7837, @cert-manager-bot)

GitHub Action workflow link

---

Created automatically by Updatecli Options: Most of Updatecli configuration is done via its manifest(s). If you close this pull request, Updatecli will automatically reopen it, the next time it runs. If you close this pull request and delete the base branch, Updatecli will automatically recreate it, erasing all previous commits made. Feel free to report any issues at github.com/updatecli/updatecli. If you find this tool useful, do not hesitate to star our GitHub repository as a sign of appreciation, and/or to tell us directly on our chat!

[netlify]

✅ Deploy Preview for epinio-docs-staging ready!

Name	Link
🔨 Latest commit	aa2ffd2
🔍 Latest deploy log	https://app.netlify.com/projects/epinio-docs-staging/deploys/68decfcfd6e65100089c38c6
😎 Deploy Preview	https://deploy-preview-413--epinio-docs-staging.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.