CI: Install pandoc 3 correctly from the pandoc-cli package

Author: LaurentRDC

.github/workflows/ci.yml

@@ -156,7 +156,7 @@ jobs:
       # Integration tests sometimes hang on MacOS 
       if: matrix.os == 'ubuntu-latest'
       run: |
-        cabal install pandoc
+        cabal install pandoc-cli
         cabal install exe:pandoc-plot
         
         pandoc --filter pandoc-plot -i tests/integration.md -t html

.github/workflows/gh-pages.yml

@@ -57,7 +57,7 @@ jobs:
 
     - name: Install pandoc-plot and other dependencies
       run: |
-        cabal install pandoc
+        cabal install pandoc-cli
         cabal install exe:pandoc-plot
     
     - name: Install Python dependencies

tools/mkmanual.sh

@@ -1,7 +1,7 @@
 echo "Making the pandoc-plot manual"
 
 cabal install exe:pandoc-plot --overwrite-policy=always
-cabal install pandoc --overwrite-policy=always
+cabal install pandoc-cli --overwrite-policy=always
 declare version="$(pandoc-plot --version)"
 
 pandoc-plot --help > help.txt