fix tests

system/t04_mirror/CreateMirror14Test_mirror_show

@@ -2,7 +2,7 @@ Name: mirror14
 Archive Root URL: http://repo.aptly.info/system-tests/cloud.r-project.org/bin/linux/debian/
 Distribution: ./bullseye-cran40/
 Components: 
-Architectures: 
+Architectures: all, amd64, i386
 Download Sources: no
 Download .udebs: no
 Last update: never

system/t04_mirror/CreateMirror21Test_mirror_show

@@ -2,7 +2,7 @@ Name: mirror21
 Archive Root URL: http://repo.aptly.info/system-tests/pkg.jenkins.io/debian-stable/
 Distribution: ./binary/
 Components: 
-Architectures: 
+Architectures: all
 Download Sources: no
 Download .udebs: no
 Last update: never

system/t04_mirror/CreateMirror33Test_mirror_show

@@ -2,7 +2,7 @@ Name: mirror33
 Archive Root URL: http://repo.aptly.info/system-tests/nvidia.github.io/libnvidia-container/stable/ubuntu16.04/amd64/
 Distribution: ./
 Components: 
-Architectures: 
+Architectures: amd64
 Download Sources: no
 Download .udebs: no
 Last update: never

system/t04_mirror/ListMirror6Test_gold

@@ -126,7 +126,10 @@
     "ArchiveRoot": "http://repo.aptly.info/system-tests/download.opensuse.org/repositories/Apache:/MirrorBrain/Debian_9.0/",
     "Distribution": "./",
     "Components": null,
-    "Architectures": null,
+    "Architectures": [
+      "amd64",
+      "i386"
+    ],
     "Meta": {
       "Architectures": "i386 amd64",
       "Archive": "Debian_9.0",