ci(renovate): change trivy datasource from tags to releases

...because it seems that on the trivy repository tags are created before releases and we multiple times ran into problems where a new tag was present but not a new release. Installing trivy via the setup-trivy action accesses the GitHub releases and fails in such a case.

Author: stempler

action.yml

@@ -151,7 +151,7 @@ runs:
     - name: Install Trivy
       uses: aquasecurity/setup-trivy@3fb12ec12f41e471780db15c232d5dd185dcb514 # v0.2.5
       with:
-        # renovate: datasource=github-tags depName=aquasecurity/trivy
+        # renovate: datasource=github-releases depName=aquasecurity/trivy
         version: v0.69.1
         cache: true