.github/workflows: Migrate workflows to Blacksmith runners - #2659

This PR has been automatically generated by a team member in your GitHub
organization using Blacksmith's [Migration
Wizard](https://docs.blacksmith.sh/introduction/quickstart). This PR
changes the following:

1. Your selected workflows will now run on Blacksmith's 2x faster
hardware (e.g., `runs-on: blacksmith-4vcpu-ubuntu-2204`). Learn more
about the [different instances available to choose
from](https://docs.blacksmith.sh/blacksmith-runners/overview#runner-tags).
2. Your jobs running on Blacksmith will now have all official GitHub and
popular third-party cache actions automatically interact with our 4x
faster, colocated cache. Learn more about [Blacksmith's actions
cache](https://docs.blacksmith.sh/blacksmith-caching/dependencies-actions).
3. Your GitHub Actions will now actually be observable. Learn more about
Blacksmith's
[logging](https://docs.blacksmith.sh/blacksmith-observability/logs) and
other
[observability](https://docs.blacksmith.sh/blacksmith-observability/dashboard)
features.
4. Your Docker builds will now automatically share their Docker layer
cache, resulting in up to 40x faster builds. Learn more about
[Blacksmith's Docker layer
caching](https://docs.blacksmith.sh/blacksmith-caching/docker-builds).

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Signed-off-by: Eitan Yarmush <[email protected]>
Co-authored-by: blacksmith-sh[bot] <157653362+blacksmith-sh[bot]@users.noreply.github.com>
Co-authored-by: Eitan Yarmush <[email protected]>
(cherry picked from commit 50c856b)

Signed-off-by: Nicholas Bucher <[email protected]>

This PR has been automatically generated by a team member in your GitHub
organization using Blacksmith's [Migration
Wizard](https://docs.blacksmith.sh/introduction/quickstart). This PR
changes the following:

1. Your selected workflows will now run on Blacksmith's 2x faster
hardware (e.g., `runs-on: blacksmith-4vcpu-ubuntu-2204`). Learn more
about the [different instances available to choose
from](https://docs.blacksmith.sh/blacksmith-runners/overview#runner-tags).
2. Your jobs running on Blacksmith will now have all official GitHub and
popular third-party cache actions automatically interact with our 4x
faster, colocated cache. Learn more about [Blacksmith's actions
cache](https://docs.blacksmith.sh/blacksmith-caching/dependencies-actions).
3. Your GitHub Actions will now actually be observable. Learn more about
Blacksmith's
[logging](https://docs.blacksmith.sh/blacksmith-observability/logs) and
other
[observability](https://docs.blacksmith.sh/blacksmith-observability/dashboard)
features.
4. Your Docker builds will now automatically share their Docker layer
cache, resulting in up to 40x faster builds. Learn more about
[Blacksmith's Docker layer
caching](https://docs.blacksmith.sh/blacksmith-caching/docker-builds).

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---------

Signed-off-by: Eitan Yarmush <[email protected]>
Co-authored-by: blacksmith-sh[bot] <157653362+blacksmith-sh[bot]@users.noreply.github.com>
Co-authored-by: Eitan Yarmush <[email protected]>
(cherry picked from commit 50c856b)

Signed-off-by: Nicholas Bucher <[email protected]>

…#2712)

---
*🤖 written by Claude (start)*

## Release note

```release-note
NONE
```

## Changes

Backport of #2659 and #2723: CI, image scan and tag builds run on
Blacksmith runners with its Docker builder.

---
*🤖 written by Claude (end)*

---------

Signed-off-by: Nicholas Bucher <[email protected]>
Co-authored-by: blacksmith-sh[bot] <157653362+blacksmith-sh[bot]@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>