maint: Add ci workflow to check links

[apatniv]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)
Address issue #1514

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

It is more accurate to test this on github workflow as this is where link validation checks would run.

Does This PR Require a Core Repo Change?

• Yes. - Link to PR:
• No.

Checklist:

See contributing.md for styleguide, changelog guidelines, and more.

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: apatniv / name: apatniv (3589685, 414f858, 4fe4b81, be63493, f24f44c, f9d2001)
• ✅ login: emdneto / name: Emídio Neto (0325e39)

[MikeGoldsmith]

Looks good - thanks @apatniv.

[tammy-baylis-swi]

Lgtm, maybe add .rst as Mike has suggested.

[apatniv]

@tammy-baylis-swi Do you want me to make a PR to add .rst to core repo's workflow: https://github.com/open-telemetry/opentelemetry-python/blob/9c48362c1d29acc74c333354c2c314bd3b71ef8e/.github/workflows/check-links.yml as well.

[tammy-baylis-swi]

@tammy-baylis-swi Do you want me to make a PR to add .rst to core repo's workflow: https://github.com/open-telemetry/opentelemetry-python/blob/9c48362c1d29acc74c333354c2c314bd3b71ef8e/.github/workflows/check-links.yml as well.

Sure @apatniv ! Much appreciated.

[apatniv]

@tammy-baylis-swi Created a PR for core repo as well.
open-telemetry/opentelemetry-python#5114