ApkVerityTestAppPrebuilt: update dm prebuilts to include manifest.json

The dex-metadata (.dm) files now all include a required manifest.json

  $> unzip CtsApkVerityTestAppPrebuilt.dm manifest.json ; cat manifest.json
  {
    "packageName": "android.appsecurity.cts.apkveritytestapp",
    "versionCode": 30
  }

The .dm.fsv_sig have also been resigned against the new .dm files.

Bug: 179295368
Change-Id: If398685dd94e6ee310c2ad8bfac0b618ac04617a
Test: atest CtsAppSecurityHostTestCases:ApkVerityInstallTest
Test: adb install-multiple -r  CtsApkVerityTestAppSplitPrebuilt.apk CtsApkVerityTestAppSplitPrebuilt.dm CtsApkVerityTestAppPrebuilt.apk CtsApkVerityTestAppPrebuilt.dm CtsApkVerityTestAppPrebuilt.apk.fsv_sig CtsApkVerityTestAppPrebuilt.dm.fsv_sig CtsApkVerityTestAppSplitPrebuilt.apk.fsv_sig CtsApkVerityTestAppSplitPrebuilt.dm.fsv_sig