[ci] fix api doc gen job

.github/workflows/main.yml

@@ -281,7 +281,7 @@ jobs:
           sudo add-apt-repository ppa:avsm/ppa -y # provides OPAM 2
           sudo add-apt-repository ppa:haxe/ocaml -y # provides newer version of mbedtls
           sudo apt-get update -qqy
-          sudo apt-get install -qqy ocaml-nox camlp5 opam libpcre3-dev zlib1g-dev libgtk2.0-dev libmbedtls-dev ninja-build libstring-shellquote-perl libipc-system-simple-perl
+          sudo apt-get install -qqy ocaml-nox camlp5 opam libc6 libpcre3-dev zlib1g-dev libgtk2.0-dev libmbedtls-dev ninja-build libstring-shellquote-perl libipc-system-simple-perl
 
       - name: Install OCaml libraries
         if: steps.cache-opam.outputs.cache-hit != 'true'

extra/github-actions/workflows/main.yml

@@ -94,7 +94,7 @@ jobs:
           sudo add-apt-repository ppa:avsm/ppa -y # provides OPAM 2
           sudo add-apt-repository ppa:haxe/ocaml -y # provides newer version of mbedtls
           sudo apt-get update -qqy
-          sudo apt-get install -qqy ocaml-nox camlp5 opam libpcre3-dev zlib1g-dev libgtk2.0-dev libmbedtls-dev ninja-build libstring-shellquote-perl libipc-system-simple-perl
+          sudo apt-get install -qqy ocaml-nox camlp5 opam libc6 libpcre3-dev zlib1g-dev libgtk2.0-dev libmbedtls-dev ninja-build libstring-shellquote-perl libipc-system-simple-perl
 
       - name: Install OCaml libraries
         if: steps.cache-opam.outputs.cache-hit != 'true'