Fix nginx rules severity and bump opengrep 1.18.0

.tool_version

@@ -1 +1 @@
-1.17.0
+1.18.0

docs/codacy-rules.yaml

@@ -531,7 +531,7 @@ rules:
   - id: codacy.k8s.ingress.nginx.retirement.ingress-resource
     languages:
       - yaml
-    severity: WARNING
+    severity: ERROR
     message: >
       This Ingress is configured to use the Ingress NGINX controller
       (kubernetes.io/ingress.class: nginx or ingressClassName: nginx).
@@ -564,15 +564,15 @@ rules:
       description: >
         Detects Ingress resources configured to use the Ingress NGINX controller.
         Ingress NGINX is scheduled for retirement (no fixes after March 2026).
-      impact: MEDIUM
+      impact: HIGH
       confidence: HIGH
       references:
         - https://kubernetes.io/blog/2025/11/11/ingress-nginx-retirement/
         - https://kubernetes.github.io/ingress-nginx/user-guide/basic-usage/
   - id: codacy.k8s.ingress.nginx.retirement.ingress-class
     languages:
       - yaml
-    severity: WARNING
+    severity: ERROR
     message: >
       This IngressClass is wired to the Ingress NGINX controller
       (spec.controller: k8s.io/ingress-nginx).
@@ -591,14 +591,14 @@ rules:
       description: >
         Detects IngressClass objects wired to the Ingress NGINX controller.
         Ingress NGINX is scheduled for retirement (no fixes after March 2026).
-      impact: MEDIUM
+      impact: HIGH
       confidence: HIGH
       references:
         - https://kubernetes.io/blog/2025/11/11/ingress-nginx-retirement/
   - id: codacy.k8s.ingress.nginx.retirement.workload
     languages:
       - yaml
-    severity: WARNING
+    severity: ERROR
     message: >
       This Kubernetes resource is labelled as part of the Ingress NGINX
       controller stack (app.kubernetes.io/name: ingress-nginx).
@@ -620,7 +620,7 @@ rules:
       description: >
         Detects Kubernetes resources labelled as part of the Ingress NGINX
         controller stack. Ingress NGINX is scheduled for retirement (no fixes after March 2026).
-      impact: MEDIUM
+      impact: HIGH
       confidence: HIGH
       references:
         - https://kubernetes.io/blog/2025/11/11/ingress-nginx-retirement/

docs/multiple-tests/codacy-rules/results.xml

@@ -48,10 +48,10 @@
         <error source="codacy.csharp.best-practice.misleading-exception-class-name" line="33" message="Class name contains 'Exception' but does not inherit from System.Exception or its subclasses." severity="warning" />
     </file>
     <file name="codacy.k8s.ingress.nginx.retirement.yaml">
-        <error source="codacy.k8s.ingress.nginx.retirement.ingress-resource" line="5" message="This Ingress is configured to use the Ingress NGINX controller (kubernetes.io/ingress.class: nginx or ingressClassName: nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="warning" />
-        <error source="codacy.k8s.ingress.nginx.retirement.ingress-resource" line="26" message="This Ingress is configured to use the Ingress NGINX controller (kubernetes.io/ingress.class: nginx or ingressClassName: nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="warning" />
-        <error source="codacy.k8s.ingress.nginx.retirement.ingress-class" line="46" message="This IngressClass is wired to the Ingress NGINX controller (spec.controller: k8s.io/ingress-nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="warning" />
-        <error source="codacy.k8s.ingress.nginx.retirement.workload" line="55" message="This Kubernetes resource is labelled as part of the Ingress NGINX controller stack (app.kubernetes.io/name: ingress-nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="warning" />
+        <error source="codacy.k8s.ingress.nginx.retirement.ingress-resource" line="5" message="This Ingress is configured to use the Ingress NGINX controller (kubernetes.io/ingress.class: nginx or ingressClassName: nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="error" />
+        <error source="codacy.k8s.ingress.nginx.retirement.ingress-resource" line="26" message="This Ingress is configured to use the Ingress NGINX controller (kubernetes.io/ingress.class: nginx or ingressClassName: nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="error" />
+        <error source="codacy.k8s.ingress.nginx.retirement.ingress-class" line="46" message="This IngressClass is wired to the Ingress NGINX controller (spec.controller: k8s.io/ingress-nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="error" />
+        <error source="codacy.k8s.ingress.nginx.retirement.workload" line="55" message="This Kubernetes resource is labelled as part of the Ingress NGINX controller stack (app.kubernetes.io/name: ingress-nginx). Ingress NGINX is scheduled for retirement (no fixes after March 2026). Plan to migrate to Gateway API or another Ingress controller." severity="error" />
     </file>
     <file name="codacy-shell.sh"> 
         <error source="codacy.bash.security.hard-coded-password" line="1" message="Hardcoded passwords are a security risk." severity="error" />