Update danielpalme/ReportGenerator-GitHub-Action action to v5.4.18

.github/workflows/ci-tests.yml

@@ -35,7 +35,7 @@ jobs:
           --verbosity minimal
 
       - name: Merge code coverage results
-        uses: danielpalme/ReportGenerator-GitHub-Action@9870ed167742d546b99962ff815fcc1098355ed8 # v5.4.17
+        uses: danielpalme/ReportGenerator-GitHub-Action@f3c6b3f8a29686284ef7a7cf6dccb79a01d98444 # v5.4.18
         with:
           reports: "**/coverage.cobertura.xml"
           targetdir: "merged/"