ci: clang-ast perl

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Author: ac000

.github/workflows/clang-ast.yaml

@@ -30,7 +30,7 @@ jobs:
         run: |
           apt-get -y update
           apt-get -y install git llvm-dev libclang-dev clang make \
-                             libssl-dev libpcre2-dev
+                             libssl-dev libpcre2-dev libperl-dev
 
       - uses: actions/checkout@v4
 
@@ -49,3 +49,8 @@ jobs:
 
       - name: Build C tests
         run: make -j4 tests
+
+      - name: Build Perl language module
+        run: |
+          ./configure perl
+          make -j4 perl