Refactor pgbouncer pool parameters rendering

Improves the Jinja2 template logic for rendering pool parameters in pgbouncer.ini. Pool parameters are now collected into a list and joined, ensuring consistent formatting for both string and mapping types.

Author: vitabaks

automation/roles/pgbouncer/templates/pgbouncer.ini.j2

@@ -1,6 +1,14 @@
 [databases]
 {% for pool in pgbouncer_pools %}
-{{ pool.name }} = host={{ postgresql_unix_socket_dir }} port={{ postgresql_port }} dbname={{ pool.dbname }} {% if pool.pool_parameters is string %}{{ pool.pool_parameters }}{% elif pool.pool_parameters is mapping %}{% for k, v in pool.pool_parameters.items() %}{{ k }}={{ v }} {% endfor %}{% endif %}
+{%   set params = [] %}
+{%   if pool.pool_parameters is string %}
+{%     set _ = params.append(pool.pool_parameters) %}
+{%   elif pool.pool_parameters is mapping %}
+{%     for k, v in pool.pool_parameters.items() %}
+{%       set _ = params.append(k ~ '=' ~ v) %}
+{%     endfor %}
+{%   endif %}
+{{ pool.name }} = host={{ postgresql_unix_socket_dir }} port={{ postgresql_port }} dbname={{ pool.dbname }} {{ params | join(' ') }}
 {% endfor %}
 
 * = host={{ postgresql_unix_socket_dir }} port={{ postgresql_port }}