CI: build on ubuntu 20.04

slime73 · slime73 · commit 55fa64f6322c · 2023-12-22T12:51:10.000+01:00
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ jobs:
 
   Linux:
     name: ${{ matrix.mode.name }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     timeout-minutes: 30
     strategy:
       matrix:
