refactor: make logging verbosity case-insensitive

Author: Diaphteiros

api/crds/manifests/openmcp.cloud_clusterproviders.yaml

@@ -2071,6 +2071,9 @@ spec:
                 - DEBUG
                 - INFO
                 - ERROR
+                - debug
+                - info
+                - error
                 type: string
             required:
             - image

api/crds/manifests/openmcp.cloud_platformservices.yaml

@@ -2071,6 +2071,9 @@ spec:
                 - DEBUG
                 - INFO
                 - ERROR
+                - debug
+                - info
+                - error
                 type: string
             required:
             - image

api/crds/manifests/openmcp.cloud_serviceproviders.yaml

@@ -2071,6 +2071,9 @@ spec:
                 - DEBUG
                 - INFO
                 - ERROR
+                - debug
+                - info
+                - error
                 type: string
             required:
             - image

api/provider/v1alpha1/deployment_types.go

@@ -54,7 +54,7 @@ type DeploymentSpec struct {
 	Env []EnvVar `json:"env,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
 
 	// Verbosity is the verbosity level of the provider.
-	// +kubebuilder:validation:Enum=DEBUG;INFO;ERROR
+	// +kubebuilder:validation:Enum=DEBUG;INFO;ERROR;debug;info;error
 	// +kubebuilder:default=INFO
 	Verbosity string `json:"verbosity,omitempty"`