add var for tag version libretls

roles/libretls/tasks/main.yml

@@ -29,7 +29,7 @@
   ansible.builtin.git:
     dest: "{{ path_tmp_git }}"
     repo: "{{ git }}"
-    refspec: "3.7.0"
+    refspec: "{{ tag_git }}"
     single_branch: yes
 
 - name: autoreconf

roles/libretls/vars/main.yml

@@ -1,5 +1,6 @@
 ---
 git: "https://git.causal.agency/libretls/"
+tag_git: "3.7.0"
 path_tmp_git: "/tmp/libretls"
 lib_name: "libtls.so.26.0.1"
 path_local_lib: "/usr/local/lib/{{ lib_name }}"