Update _check_install_source for a change to NFS handling

A change to how anaconda handles NFS repos changed the log
messages we get when we use one. We may need further changes for
using NFS as a base repo when this change hits Rawhide nightly.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/kde/printing_check_sentence-20230328.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "xpos": 196,
+      "type": "match",
+      "ypos": 140,
+      "width": 316,
+      "height": 16
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "printing_check_sentence"
+  ]
+}

tests/_check_install_source.pm

@@ -32,7 +32,9 @@ sub run {
             assert_script_run 'grep "Added the \'addrepo\'" /tmp/anaconda.log';
             # ...and this tells us it worked (I hope).
             assert_script_run 'grep "Load metadata for the \'addrepo\'" /tmp/anaconda.log';
-            assert_script_run 'grep "Loaded metadata from.*file:///run/install/addrepo.nfs" /tmp/anaconda.log';
+            # addrepo.nfs is from before Fedora 39, sources/mount-1000-nfs-device
+            # is from F39+
+            assert_script_run 'grep -E "Loaded metadata from.*file:///run/install/(addrepo.nfs|sources/mount-1000-nfs-device)" /tmp/anaconda.log';
         }
     }
     if ($repourl =~ /^hd:/) {