Update Trivy action version to 0.34.2

Signed-off-by: Jim Alcock <38649437+jalcock501@users.noreply.github.com>

Author: jalcock501

image-scan/action.yml

@@ -53,7 +53,7 @@ runs:
         fi
 
     - name: Trivy image scan
-      uses: aquasecurity/trivy-action@0.28.0
+      uses: aquasecurity/trivy-action@0.34.2
       with:
         scan-type: 'image'
         image-ref: ${{ inputs.image-ref }}
@@ -140,4 +140,4 @@ runs:
       run: |
         echo "Critical vulnerabilities detected: ${{ steps.report.outputs.crit }}"
         echo "High vulnerabilities detected: ${{ steps.report.outputs.high }}"
-        exit 1
+        exit 1