upgrade github ci image to ubuntu 24.04

Author: drsteve

.github/workflows/ramscb-ci.yml

@@ -12,14 +12,14 @@ on:
 
 jobs:
   basic-suite:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - name: Install dependencies
       run: |
         sudo apt-get update -qq
         sudo apt-get install -y make gcc g++ gfortran
         sudo apt-get install -y make libopenmpi-dev openmpi-bin
-        sudo apt-get install -y libgsl-dev libgsl23 gsl-bin libgsl-dbg
+        sudo apt-get install -y libgsl-dev libgslcblas0 gsl-bin libgsl-dbg
         sudo apt-get install -y libnetcdf-dev libnetcdff-dev nco netcdf-bin
         gfortran --version
         gsl-config --version