add cyrilbois as a contributor for content

[allcontributors]

Adds @cyrilbois as a contributor for content.

This was requested by sspencerwire in this comment

[skip ci]

[github-actions]

Test results for 3d98d31:

Number of broken URLs: 5

URL,RESULT,FILENAME
 http://www.neelc.org/,failed,guides/contribute/README.md
 https://git.sr.ht/%7Equartsize/,failed,guides/contribute/README.md
 https://certbot.eff.org/instructions?ws=apache&os=centosrhel8,failed,guides/security/generating_ssl_keys_lets_encrypt.md
 https://kb.vmware.com/s/article/71264,failed,guides/automation/templates-automation-packer-vsphere.md
 https://azuremarketplace.microsoft.com/en-us/marketplace/apps/resf.rockylinux-aarch64,failed,guides/cloud/migration-to-new-azure-images.md