Use newer GCC in GHA Linux build

Author: timangus

.github/workflows/build.yml

@@ -1,12 +1,19 @@
 name: Build
 on: [push, pull_request]
+env:
+  LINUX_GCC_VERSION: 13
 
 jobs:
   linux:
     name: Linux
     runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
+    - name: Install Tools
+      run: |
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt-get update
+        sudo apt install gcc-${{ env.LINUX_GCC_VERSION }}
     - name: Install Dependencies
       run: |
         sudo apt-get update