build(deps): bump docker/cagent-action from 1.0.3 to 1.0.4

Bumps [docker/cagent-action](https://github.com/docker/cagent-action) from 1.0.3 to 1.0.4.
- [Release notes](https://github.com/docker/cagent-action/releases)
- [Commits](docker/cagent-action@v1.0.3...v1.0.4)

---
updated-dependencies:
- dependency-name: docker/cagent-action
  dependency-version: 1.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/agent.yml

@@ -25,7 +25,7 @@ jobs:
         run: npm ci
 
       - name: Run agent
-        uses: docker/[email protected].3
+        uses: docker/[email protected].4
         timeout-minutes: 15
         with:
           cagent-version: v1.15.5