SDL_net: CI: linux workflows to run under ubuntu-latest. (30301)

From 303013f98c06a134883a006e1bbbd69d9b5fef19 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 11 Apr 2025 01:55:56 +0300
Subject: [PATCH] CI: linux workflows to run under ubuntu-latest.

---
 .github/workflows/main.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ddc21d0..c52753d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,9 +18,9 @@ jobs:
         - { name: Windows (MSVC+CMake),         os: windows-latest, shell: sh,   cmake: '-GNinja', msvc: 1, shared: 1, static: 0 }
         - { name: Windows (mingw32+autotools),  os: windows-latest, shell: 'msys2 {0}', msystem: mingw32, msys-env: mingw-w64-i686, shared: 1, static: 1 }
         - { name: Windows (mingw64+CMake),      os: windows-latest, shell: 'msys2 {0}', msystem: mingw64, msys-env: mingw-w64-x86_64, cmake: '-G "Ninja Multi-Config"', shared: 1, static: 0 }
-        - { name: Linux (autotools),            os: ubuntu-20.04,   shell: sh , shared: 1, static: 1 }
-        - { name: Linux (CMake),                os: ubuntu-20.04,   shell: sh,   cmake: '-GNinja', shared: 1, static: 0 }
-        - { name: 'Linux (CMake, static)',      os: ubuntu-20.04,   shell: sh,   cmake: '-DBUILD_SHARED_LIBS=OFF -GNinja', shared: 0, static: 1 }
+        - { name: Linux (autotools),            os: ubuntu-latest,  shell: sh , shared: 1, static: 1 }
+        - { name: Linux (CMake),                os: ubuntu-latest,  shell: sh,   cmake: '-GNinja', shared: 1, static: 0 }
+        - { name: 'Linux (CMake, static)',      os: ubuntu-latest,  shell: sh,   cmake: '-DBUILD_SHARED_LIBS=OFF -GNinja', shared: 0, static: 1 }
         - { name: macOS (autotools),            os: macos-latest,   shell: sh, shared: 1, static: 1 }
         - { name: macOS (CMake),                os: macos-latest,   shell: sh,   cmake: '-GNinja', shared: 1, static: 0 }