ci: bump crytic/slither-action from 0.2.0 to 0.4.0 (#2)

Bumps [crytic/slither-action](https://github.com/crytic/slither-action) from 0.2.0 to 0.4.0.
- [Release notes](https://github.com/crytic/slither-action/releases)
- [Commits](crytic/slither-action@v0.2.0...v0.4.0)

---
updated-dependencies:
- dependency-name: crytic/slither-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
         run: rm foundry.toml
 
       - name: Run Slither
-        uses: crytic/slither-action@v0.2.0
+        uses: crytic/slither-action@v0.4.0
         id: slither
         with:
           target: "src/SparkRsr.sol"