From 916eacab370fa334c1e68dbd87ddf896ca3d4f8a Mon Sep 17 00:00:00 2001
From: Dirk Stolle <striezel-dev@web.de>
Date: Thu, 1 May 2025 23:32:22 +0200
Subject: [PATCH] Remove Ubuntu 20.04 build from CI

The Ubuntu 20.04 image on GitHub Actions has been unavailable
since 2025-04-15. See <https://github.com/actions/runner-images/issues/11101>
for more information on the deprecation and removal.

Therefore all build jobs that use the Ubuntu 20.04 runner image
of GHA will fail and have to be replaced or removed.
---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 175b69b..7e0ebf8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-20.04, ubuntu-22.04, ubuntu-24.04, macos-13, macos-14, macos-15 ]
+        os: [ ubuntu-22.04, ubuntu-24.04, macos-13, macos-14, macos-15 ]
 
     runs-on: ${{ matrix.os }}