CI: Use gcc-10 as the minimum compiler in CI

gcc 9 does not fully support c++20, although it is probably sufficient for our current use

Author: ptheywood

.github/workflows/Manylinux2_28.yml

@@ -39,7 +39,7 @@ jobs:
             os: ubuntu-24.04
           - cuda: "12.0"
             cuda_arch: "50"
-            hostcxx: gcc-toolset-9
+            hostcxx: gcc-toolset-10
             os: ubuntu-24.04
         config:
           - name: "Release"

.github/workflows/Ubuntu.yml

@@ -39,7 +39,7 @@ jobs:
             os: ubuntu-24.04
           - cuda: "12.0"
             cuda_arch: "50"
-            hostcxx: gcc-9
+            hostcxx: gcc-10
             os: ubuntu-22.04
         config:
           - name: "Release"