[trivy.ts] Convert latest version to number

Author: homoluctus

src/trivy.ts

@@ -50,14 +50,14 @@ export class Downloader {
   }
 
   private async getDownloadUrl(version: string, os: string): Promise<string> {
-    const filename: string = `trivy_${version}_${os}-64bit.tar.gz`
     let response: Octokit.Response<ReposGetLatestReleaseResponse>
 
     try {
       if (version === 'latest') {
         response = await this.githubClient.repos.getLatestRelease({
           ...Downloader.trivyRepository
         })
+        version = response.data.tag_name.replace(/v/, '')
       } else {
         response = await this.githubClient.repos.getReleaseByTag({
           ...Downloader.trivyRepository,
@@ -71,6 +71,8 @@ export class Downloader {
       `)
     }
 
+    const filename: string = `trivy_${version}_${os}-64bit.tar.gz`
+
     for await (const asset of response.data.assets) {
       if (asset.name === filename) {
         return asset.browser_download_url