Pin the doctest workflow to Ubuntu 22.04 (#125236)

diff --git a/.github/workflows/reusable-docs.yml b/.github/workflows/reusable-docs.yml
index 4b021b3dc32f154bca64785195c6f23823bbe1bf..7755cb431bd3015d39f4e0187a35ee2b02b16000 100644 (file)
--- a/.github/workflows/reusable-docs.yml
+++ b/.github/workflows/reusable-docs.yml
@@ -95,7 +95,7 @@ jobs:
   # Run "doctest" on HEAD as new syntax doesn't exist in the latest stable release
   doctest:
     name: 'Doctest'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     steps:
     - uses: actions/checkout@v4