* ci: increase runner size and ubuntu concurrency

The ubuntu provider is consistently timing out. It should be rewritten
to use a more performant approach, but first today's Grype DB needs to
be published. Temporarily raise the amount of compute available to the
daily data sync jobs and increase the amount concurrency requested of
the vunnel ubuntu provider.

Signed-off-by: Will Murphy <[email protected]>

* ci: run highly concurrent providers (ubuntu) on big runner

The ubuntu provider does a ton of local file I/O and can be meaningfully
sped up by using the a large multi core runner and a higher number of
workers. However many providers are essentially single threaded and do
not benefit from the multicore runner.

Therfore, rearrange some yaml to put highly concurrent providers (today
just Ubuntu) on a bit multi core runner without paying to put the rest
of them on the big multi core runner.

Signed-off-by: Will Murphy <[email protected]>

* revert vunnel concurrency change

Signed-off-by: Will Murphy <[email protected]>

* ci: prevent runner stealing in matrix jobs

Add job-index to runs-on labels for matrix strategy jobs to ensure
deterministic job-to-runner assignment. Without unique labels, runners
launched for one matrix job could pick up a different job with matching
labels, causing unpredictable scheduling.

Affected jobs:
  - daily-data-sync.yaml: update-provider-multicore, update-provider
  - daily-db-publisher-r2.yaml: generate-and-publish-dbs
  - validations.yaml: Acceptance-Test

See: https://runs-on.com/guides/troubleshoot/#runner-stealing

Signed-off-by: Will Murphy <[email protected]>

---------

Signed-off-by: Will Murphy <[email protected]>

#777)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7.0.11 to 8.0.0.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@22a9089...98357b1)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.1 to 6.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5.0.1...8e8c483)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Bumps [actions/cache](https://github.com/actions/cache) from 4.3.0 to 5.0.1.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@0057852...9255dc7)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Bumps [actions/cache](https://github.com/actions/cache) from 4.3.0 to 5.0.1.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@0057852...9255dc7)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

)

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 7.1.5 to 7.1.6.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@ed21f2f...681c641)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: 7.1.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: wagoodman <[email protected]>

)

Bumps [github.com/anchore/grype](https://github.com/anchore/grype) from 0.104.2 to 0.104.3.
- [Release notes](https://github.com/anchore/grype/releases)
- [Changelog](https://github.com/anchore/grype/blob/main/RELEASE.md)
- [Commits](anchore/grype@v0.104.2...v0.104.3)

---
updated-dependencies:
- dependency-name: github.com/anchore/grype
  dependency-version: 0.104.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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