Update postgrescluster and pgupgrade APIs to allow pg18

Author: dsessler7

config/crd/bases/postgres-operator.crunchydata.com_pgupgrades.yaml

@@ -964,7 +964,7 @@ spec:
               fromPostgresVersion:
                 description: The major version of PostgreSQL before the upgrade.
                 format: int32
-                maximum: 17
+                maximum: 18
                 minimum: 11
                 type: integer
               image:
@@ -1094,7 +1094,7 @@ spec:
               toPostgresVersion:
                 description: The major version of PostgreSQL to be upgraded to.
                 format: int32
-                maximum: 17
+                maximum: 18
                 minimum: 11
                 type: integer
               tolerations:

config/crd/bases/postgres-operator.crunchydata.com_postgresclusters.yaml

@@ -12823,7 +12823,7 @@ spec:
               postgresVersion:
                 description: The major version of PostgreSQL installed in the PostgreSQL
                   image
-                maximum: 17
+                maximum: 18
                 minimum: 11
                 type: integer
               proxy:

pkg/apis/postgres-operator.crunchydata.com/v1beta1/pgupgrade_types.go

@@ -84,7 +84,7 @@ type PGUpgradeSettings struct {
 	// The major version of PostgreSQL before the upgrade.
 	// ---
 	// +kubebuilder:validation:Minimum=11
-	// +kubebuilder:validation:Maximum=17
+	// +kubebuilder:validation:Maximum=18
 	// +required
 	FromPostgresVersion int32 `json:"fromPostgresVersion"`
 
@@ -98,7 +98,7 @@ type PGUpgradeSettings struct {
 	// The major version of PostgreSQL to be upgraded to.
 	// ---
 	// +kubebuilder:validation:Minimum=11
-	// +kubebuilder:validation:Maximum=17
+	// +kubebuilder:validation:Maximum=18
 	// +required
 	ToPostgresVersion int32 `json:"toPostgresVersion"`
 

pkg/apis/postgres-operator.crunchydata.com/v1beta1/postgrescluster_types.go

@@ -131,7 +131,7 @@ type PostgresClusterSpec struct {
 	// The major version of PostgreSQL installed in the PostgreSQL image
 	// +kubebuilder:validation:Required
 	// +kubebuilder:validation:Minimum=11
-	// +kubebuilder:validation:Maximum=17
+	// +kubebuilder:validation:Maximum=18
 	// +operator-sdk:csv:customresourcedefinitions:type=spec,order=1
 	PostgresVersion int `json:"postgresVersion"`