v1.2.3

What's Changed

• Bump internal action pins to v1.2.2 by @puerco in #78
• Update ampel installer to v1.3.3 by @binerbot in #79
• Pin README action examples to latest releases by @binerbot in #80
• ampel/verify: add an ampel-version input by @puerco in #81
• Add check-internal-pins workflow by @puerco in #82
• Pin internal action refs to 619a474 by @binerbot in #83

Full Changelog: v1.2.2...v1.2.3