devops: upgrade to gcc 15

Signed-off-by: Aaron Teo <[email protected]>

Author: taronaeo

.github/workflows/build.yml

@@ -209,6 +209,14 @@ jobs:
           key: ubuntu-cpu-cmake
           evict-old-files: 1d
 
+      - name: Install GCC 15
+        id: install_gcc
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends gcc-15 g++-15
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-15 15
+          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-15 15
+
       - name: Build Dependencies
         id: build_depends
         run: |