0.2.7

chore: 0.2.7 — sync scan.yml `uses:` tag with the release tag (#20)

The 0.2.0 release introduced a documented bump step — every release
must update `.github/workflows/scan.yml:52`'s `uses: ob-aion/pruner@<X>`
line in lockstep with the new tag. The step fell through 0.2.3, 0.2.4,
0.2.5, and 0.2.6 (four consecutive releases). Consumers calling
`uses: ob-aion/pruner/.github/workflows/scan.yml@0.2.6` were therefore
executing the 0.2.2 composite action internally, missing the
`cisco-ai-skill-scanner` bump 2.0.9 to 2.0.11 that 0.2.6 shipped.

This release catches scan.yml up to `@0.2.7`. Future releases keep the
two in lockstep.