feat(setup-trivy)!: automatically determine arch (#14)

Mapping x86_64 to "64bit" and aarch64 to "ARM64" as this is how Trivy names their releases.
Adjusted CICD to test-run both amd64 and arm64 versions.

Reviewed-on: t.behrendt/trivy-actions#14
Reviewed-by: branch-buddy <branch-buddy@t00n.de>
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

setup-db/README.md

@@ -30,7 +30,6 @@ jobs:
         uses: https://gitea.t000-n.de/t.behrendt/trivy-actions/setup-trivy@0.0.1
         with:
           version: "v0.66.0"
-          architecture: "amd64"
       - name: Setup DB
         uses: https://gitea.t000-n.de/t.behrendt/trivy-actions/setup-db@0.0.1
       - name: Scan for vulnerabilities