Stop OCR-waiting on the unencrypted install confirm

Tesseract cannot read the highlighted "Yes, install without encryption"
button under any preprocessing, so waiting for that text always timed out
and killed unencrypted installs at the disk warning. Capture the screen and
continue instead; a Ctrl+C toggle that failed to apply still surfaces when
the unexpectedly encrypted install stalls at the LUKS prompt on first boot.

bin/omarchy-iso-test

@@ -631,7 +631,11 @@ drive_configurator() {
     capture_console "success-installer-04-prepare-disk-warning-encrypted"
     if ! $ENCRYPT; then
       press ctrl-c
-      wait_for_screen "without encryption" 30
+      # The toggled confirm ("Yes, install without encryption") is a highlighted
+      # button OCR cannot read, so don't wait for it. A failed toggle still
+      # surfaces: the encrypted install stalls at the LUKS prompt on first boot
+      # and SSH never comes up.
+      sleep 2
       capture_console "success-installer-05-prepare-disk-warning-unencrypted"
     fi
     press ret
@@ -695,7 +699,11 @@ drive_configurator() {
   capture_console "success-installer-12-disk-warning-encrypted"
   if ! $ENCRYPT; then
     press ctrl-c # toggles the confirm to the unencrypted flow
-    wait_for_screen "without encryption" 30
+    # The toggled confirm ("Yes, install without encryption") is a highlighted
+    # button OCR cannot read, so don't wait for it. A failed toggle still
+    # surfaces: the encrypted install stalls at the LUKS prompt on first boot
+    # and SSH never comes up.
+    sleep 2
     capture_console "success-installer-13-disk-warning-unencrypted"
   fi
   press ret