github: update stale github workflow

`ubuntu-18.04` environment is deprecated, let's switch to ubuntu-22.04.

Signed-off-by: Guillaume Abrioux <gabrioux@ibm.com>

diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 45d6740c9366a231279d8232ef3c68769200a99c..bf10a9a390e1e5acdf1f018328f8b8f77eb2bcc1 100644 (file)
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   stale:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/stale@v3
       with: