fix virtualbox not found in CI

.github/vagrant.patch

@@ -0,0 +1,26 @@
+From f67d4f75eb2d97601df3cfe491ed4594422f190b Mon Sep 17 00:00:00 2001
+From: Paul Cacheux <[email protected]>
+Date: Mon, 20 May 2024 14:50:01 +0200
+Subject: [PATCH] virtualbox version detection: handle WARNING lines
+
+---
+ plugins/providers/virtualbox/driver/meta.rb | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/plugins/providers/virtualbox/driver/meta.rb b/plugins/providers/virtualbox/driver/meta.rb
+index 63af500c65a..413574e4125 100644
+--- a/plugins/providers/virtualbox/driver/meta.rb
++++ b/plugins/providers/virtualbox/driver/meta.rb
+@@ -197,7 +197,11 @@ def read_version
+             end
+           end
+
+-          parts = output.split("_")
++          version_line = output.each_line.find do |line|
++            !line.start_with?("WARNING:")
++          end
++
++          parts = version_line.split("_")
+           return nil if parts.empty?
+           parts[0].split("r")[0]
+         end

.github/workflows/ci.yml

@@ -97,6 +97,10 @@ jobs:
 
           sudo apt-get update && sudo apt-get install gcc-12 virtualbox-7.0 vagrant
 
+      - name: Patch vagrant
+        run: |
+          sudo patch -p1 -d /opt/vagrant/embedded/gems/gems/vagrant-2.4.1/ < .github/vagrant.patch
+
       - name: Download the nikos artifact
         uses: actions/download-artifact@v4
         with: