log warning when bicep build reports warnings

Author: Sven Saatkamp

src/run/index.ts

@@ -130,9 +130,10 @@ export function executeBicepBuild(files: string[], bicepTool: string, additional
     files.forEach((file: string) => {
         const args = ['build', file, ...additionalArgsByInputs];
         const bicepProcess = taskLib.tool(bicepTool).arg(args).execSync();
-
         if (bicepProcess.code !== 0) {
             throw new Error(`Failed to execute script. Related file: ${file}`);
+        } else if (bicepProcess.stderr.length > 0) {
+            taskLib.setResult(taskLib.TaskResult.SucceededWithIssues, bicepProcess.stderr, true);
         } else {
             taskLib.debug(`- Built '${file}' successfully`);
         }