Add apt-get update to the list of instructions, CI is failing at the "install dependencies"

step...

Author: mpaiao

.github/workflows/ci.yml

@@ -43,7 +43,9 @@ jobs:
       with:
         name: ed2-binary
     - name: Install dependencies
-      run: sudo apt-get install -y --no-install-recommends gfortran libhdf5-openmpi-dev libopenmpi-dev libblas-dev liblapack-dev
+      run: 
+        sudo apt-get update
+        sudo apt-get install -y --no-install-recommends gfortran libhdf5-openmpi-dev libopenmpi-dev libblas-dev liblapack-dev
     - name: Run ED2
       working-directory: ./EDTS/
       run: |