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>

.gitea/workflows/ci.yaml

@@ -5,17 +5,19 @@ on:
 
 jobs:
   test-setup-trivy:
-    name: Test Setup Trivy
+    strategy:
+      matrix:
+        arch: [amd64, arm64]
+    name: Test Setup Trivy ${{ matrix.arch }}
     runs-on:
       - ubuntu-latest
-      - linux_amd64
+      - linux_${{ matrix.arch }}
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - name: Setup Trivy
         uses: ./setup-trivy
         with:
           version: v0.66.0
-          architecture: amd64
       - name: Run Trivy
         run: trivy --version
 
@@ -23,13 +25,11 @@ jobs:
     name: Test Setup DB
     runs-on:
       - ubuntu-latest
-      - linux_amd64
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - uses: ./setup-trivy
         with:
           version: v0.66.0
-          architecture: amd64
       - name: Setup DB
         uses: ./setup-db
         with: