chore(deps): update google/osv-scanner-action action to v1.8.4 (#625)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[google/osv-scanner-action](https://togithub.com/google/osv-scanner-action)
| action | patch | `v1.8.3` -> `v1.8.4` |

---

### Release Notes

<details>
<summary>google/osv-scanner-action (google/osv-scanner-action)</summary>

###
[`v1.8.4`](https://togithub.com/google/osv-scanner-action/releases/tag/v1.8.4)

[Compare
Source](https://togithub.com/google/osv-scanner-action/compare/v1.8.3...v1.8.4)

Bump OSV-Scanner version
https://github.com/google/osv-scanner/releases/tag/v1.8.4

</details>

---

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.github/workflows/osv-scanner-pr.yaml

@@ -16,4 +16,4 @@ permissions:
 
 jobs:
   scan-pr:
-    uses: "google/osv-scanner-action/.github/workflows/[email protected].3"
+    uses: "google/osv-scanner-action/.github/workflows/[email protected].4"