chore(ci): add semconv-update workflow for automatic updates

[kema-dev]

Description

• Add semconv update workflow

Why

• Manually running the update looks tedious, automated daily update looks nicer to me
• You can see an example here

Additional notes

• We might want to edit RELEASING.md accordingly, let me know if the workflow-way is practicable, I would edit the file if so

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: kema-dev / name: Jérémy Jourdan (b553714, e3b5edb, 283d716, 99d9cec, 9c42868, d360dee, ac7309c, 2c2dcb3, 3667e6b, 4317712, 6416bb5, 976b8d8, 7a4515d, f51a36b, 98d7da7, 31d9231, 8f84faa, 353eb36)

[pellared]

Thank you for your PR.

It seems that @MrAlias is working on a new way to generate semconv packages (see: #6683).

[kema-dev]

Added minor UX upgrades and changed cache key to one specific to semconvkit's usage, example here

[MrAlias]

This will not generate the migration documentation for the packge. #6248 needs a resolution and then automation to add that documentation needs to be added prior to being able to automate the generation in this manner.

[MrAlias]

This shouldn't be completely removed. We still need the option to generate the packages locally and that process should be documented. Additionally, the automated way of generating the package should be added.