chore(CI): drop checks - only keep latest Ubuntu 24.04 (#18991)

* chore(CI): Nuke 20.04 checks

* revert back to old where we dont test gcc on pch

* only test latest version. Keep it up to date folks

.github/workflows/core-build-nopch.yml

@@ -19,22 +19,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
-            compiler:
-              CC: gcc-10
-              CXX: g++-10
-          - os: ubuntu-20.04
-            compiler:
-              CC: clang-12
-              CXX: clang++-12
-          - os: ubuntu-22.04
-            compiler:
-              CC: clang-15
-              CXX: clang++-15
-          - os: ubuntu-22.04
-            compiler:
-              CC: gcc-12
-              CXX: g++-12
           - os: ubuntu-24.04
             compiler:
               CC: clang-18

.github/workflows/core-build-pch.yml

@@ -16,30 +16,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
-            compiler:
-              CC: gcc-10
-              CXX: g++-10
-          - os: ubuntu-20.04
-            compiler:
-              CC: clang-12
-              CXX: clang++-12
-          - os: ubuntu-22.04
-            compiler:
-              CC: clang-15
-              CXX: clang++-15
-          - os: ubuntu-22.04
-            compiler:
-              CC: gcc-12
-              CXX: g++-12
           - os: ubuntu-24.04
             compiler:
               CC: clang-18
               CXX: clang++-18
-          - os: ubuntu-24.04
-            compiler:
-              CC: gcc-14
-              CXX: g++-14
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }}-${{ matrix.compiler.CC }}-pch
     if: github.repository == 'azerothcore/azerothcore-wotlk' && !github.event.pull_request.draft

.github/workflows/import_pending.yml

@@ -8,7 +8,7 @@ jobs:
   import-pending:
     strategy:
       fail-fast: false
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     permissions: write-all
     if: github.repository == 'azerothcore/azerothcore-wotlk' && !github.event.pull_request.draft
     steps:

.github/workflows/pr_labeler.yml

@@ -4,7 +4,7 @@ on:
 
 jobs:
   triage:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     permissions: write-all
     if: github.repository == 'azerothcore/azerothcore-wotlk'
     steps:

.github/workflows/tools_build.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         # the result of the matrix will be the combination of all attributes, so we get os*compiler builds
-        os: [ubuntu-20.04]
+        os: [ubuntu-24.04]
         compiler: [clang]
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }}-${{ matrix.compiler }}