Run on ubuntu-26.04

Author: cenamiller

.github/workflows/_build-compiler.yml

@@ -23,7 +23,7 @@ on:
 jobs:
   config:
     name: Resolve Config
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     outputs:
       image: ${{ steps.container.outputs.image }}
       sha: ${{ steps.sha.outputs.short }}
@@ -47,7 +47,7 @@ jobs:
   build:
     needs: config
     name: Build ${{ matrix.core }} (${{ inputs.compiler }}, ${{ inputs.mpi }}, smiol)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     container:
       image: ${{ needs.config.outputs.image }}
     strategy: