fix: ensure git diff is included

Author: Hweinstock

packages/core/src/codewhisperer/util/zipUtil.ts

@@ -349,15 +349,15 @@ interface GitDiffOptions {
     zipType?: ZipType
 }
 
-async function getGitDiffContentForProjects(projectPaths: string[], filepath?: string, zipType?: ZipType) {
+async function getGitDiffContentForProjects(projectPaths: string[], filepath?: string) {
     let gitDiffContent = ''
     for (const projectPath of projectPaths) {
         const projectName = path.basename(projectPath)
         gitDiffContent += await getGitDiffContent({
             projectPath,
             projectName,
             filepath,
-            zipType,
+            zipType: 'project',
         })
     }
     return gitDiffContent