update from gcc-12 to gcc-14 for newest gcc asan build

Author: dynst

.github/workflows/matrix.yml

@@ -38,19 +38,16 @@ concurrency:
 # For github provided runners: https://github.com/actions/runner-images
 # See also our publicized docs about compiler support: https://github.com/CleverRaven/Cataclysm-DDA/blob/master/doc/c++/COMPILER_SUPPORT.md
 #
-# At the time of writing (Jan 2025), the feature matrix for the above criteria looks like this:
+# At the time of writing (June 2025), the feature matrix for the above criteria looks like this:
 # | name                                 | OS       | compiler | newest/ oldest | tiles | sound | localize | cmake | backtrace | lto | sanitize | mods |
 # | ------------------------------------ | -------- | -------- | -------------- | ----- | ----- | -------- | ----- | --------- | --- | -------- | ---- |
 # | Basic Build and Test                 | ubuntu   | clang-13 | oldest (clang) |       |       | yes      |       |           |     |          | yes  |
 # | Clang 18, Ubuntu, Tiles, ASan        | ubuntu   | clang-18 | newest (clang) | yes   |       | yes      |       | yes       |     | address  |      |
 # | GCC 9, Curses, LTO                   | ubuntu   | gcc-9    | oldest   (gcc) |       |       | yes      |       | yes       | yes |          |      |
-# | GCC 12, Ubuntu, Curses, ASan         | ubuntu   | gcc-12   | newest*  (gcc) |       |       | yes      |       |           |     | address  |      |
+# | GCC 14, Ubuntu, Curses, ASan         | ubuntu   | gcc-14   | newest   (gcc) |       |       | yes      |       |           |     | address  |      |
 # | GCC 9, Ubuntu, Tiles, Sound, CMake   | ubuntu   | gcc-9    | oldest   (gcc) | yes   | yes   |          | yes   |           |     |          |      |
 # | macOS 13, Apple Clang 15             | macOS 13 | apple clang-15  |  N/A    | yes   | yes   | yes      |       |           |     |          |      |
 # | Windows (in msvc-full-features.yml)  | windows  | msvc     |     N/A        | yes   | yes   | yes      |       | yes?      |     |          |      |
-#
-# gcc-12 is not actually newest. gcc-14 exists, but it's failing the asan tests on newer (24.04) ubuntu runners for whatever reason.
-# See https://github.com/CleverRaven/Cataclysm-DDA/pull/79517#issuecomment-2635790180 for a tiny bit more context
 
 jobs:
   skip-duplicates-code:
@@ -161,7 +158,7 @@ jobs:
             ccache_limit: 6G
             ccache_key: linux-llvm-18-asan
 
-          - compiler: g++-12
+          - compiler: g++-14
             os: ubuntu-latest
             cmake: 0
             tiles: 0
@@ -170,9 +167,9 @@ jobs:
             native: linux64
             pch: 1
             sanitize: address
-            title: GCC 12, Ubuntu, Curses, ASan
+            title: GCC 14, Ubuntu, Curses, ASan
             ccache_limit: 6.5G
-            ccache_key: linux-gcc-12-asan
+            ccache_key: linux-gcc-14-asan
 
           - compiler: g++-9
             os: ubuntu-22.04