fix: missing script to check PSI metrics

vars/main.yml

@@ -2,16 +2,18 @@
 nrpe_version: "4.0.3"
 nagios_plugins_version: "2.3.3"
 plugins_to_download:
-    - name: check_docker.sh
-      url: https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_docker.sh
-    - name: check_fail2ban.sh
-      url: https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_fail2ban.sh
-    - name: check_gitlab.rb
-      url: https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_gitlab.rb
-    - name: check_mem.pl
-      url: https://raw.githubusercontent.com/justintime/nagios-plugins/master/check_mem/check_mem.pl
-    - name: check_version.sh
-      url: https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=1785&cf_id=24
+    - name: "check_docker.sh"
+      url: "https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_docker.sh"
+    - name: "check_fail2ban.sh"
+      url: "https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_fail2ban.sh"
+    - name: "check_gitlab.rb"
+      url: "https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_gitlab.rb"
+    - name: "check_mem.pl"
+      url: "https://raw.githubusercontent.com/justintime/nagios-plugins/master/check_mem/check_mem.pl"
+    - name: "check_psi.py"
+      url: "https://sources.le-filament.com/lefilament/nagios-plugin/-/raw/master/check_psi.py"
+    - name: "check_version.sh"
+      url: "https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=1785&cf_id=24"
 fail2ban_jails:
-    - sshd
-    - recidive
+    - "sshd"
+    - "recidive"