CI: Bump max-parallel for CT test from 4 to 10

Signed-off-by: Hanno Becker <[email protected]>

Author: hanno-becker

.github/workflows/ct-tests.yml

@@ -18,7 +18,7 @@ jobs:
     name: CT test ${{ matrix.nix-shell }} ${{ matrix.system }}
     strategy:
       fail-fast: false
-      max-parallel: 4
+      max-parallel: 10
       matrix:
         system: [ubuntu-latest, pqcp-arm64]
         nix-shell: