Add limited Ansible language server support (#1170)

References and definition not working yet. Since ansible resolves same files as yaml LS, we will need to add disambiguation later.

Work in progress, improvements on the language server itself are being worked on, ansible support in Serena will be extended accordingly in the future.

.github/workflows/pytest.yml

@@ -383,6 +383,9 @@ jobs:
           echo "PERL_MB_OPT=--install_base \"$HOME/perl5\"" >> $GITHUB_ENV
           echo "PERL_MM_OPT=INSTALL_BASE=$HOME/perl5" >> $GITHUB_ENV
           echo "$HOME/perl5/bin" >> $GITHUB_PATH
+      - name: Install ansible-core and ansible-lint (for Ansible language server tests)
+        shell: bash
+        run: uv run pip install ansible-core ansible-lint
       - name: Install Elm
         shell: bash
         run: npm install -g elm@0.19.1-6