update udp buffers for netbird hosts

roles/lib/setup-netbird.yml

@@ -8,6 +8,17 @@
       state: present
       update_cache: no
 
+  - name: Configure network buffer sizes
+    ansible.posix.sysctl:
+      name: "{{ item.key }}"
+      value: "{{ item.value }}"
+      state: present
+      reload: yes
+      ignoreerrors: yes
+    loop:
+      - { key: 'net.core.rmem_max', value: '7500000' }
+      - { key: 'net.core.wmem_max', value: '7500000' }
+
   - name: Add repository with key
     ansible.builtin.deb822_repository:
       name: netbird