Bump google/osv-scanner-action from 1.8.3 to 1.8.4

Bumps [google/osv-scanner-action](https://github.com/google/osv-scanner-action) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/google/osv-scanner-action/releases)
- [Commits](google/osv-scanner-action@c615bb5...678a866)

---
updated-dependencies:
- dependency-name: google/osv-scanner-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/osv-scanner.yml

@@ -31,7 +31,7 @@ permissions:
 
 jobs:
   scan:
-    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@c615bb556a9a61495d218c7d439e7c8abbbfb151" # v1.8.3
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@678a866dcba398c8ed0124a09928d250f187b52a" # v1.8.4
     with:
       # Example of specifying custom arguments
       scan-args: |-