Try to fix CI

Bug: https://github.com/scsitape/stenc/issues/52

.github/workflows/c-cpp.yml

@@ -6,13 +6,17 @@ on:
   pull_request:
     branches: [ master ]
 
+
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     steps:
     - uses: actions/checkout@v3
+    #install pandoc
+    - name: Install pandoc package
+    run: |
+    sudo apt-get -y install pandoc
+    - uses: actions/checkout@v3
     - name: autoconf
       run: autoreconf -i
     - name: configure