Fix follow-up for bumping catalogd to v0.36.0: Update pollInterval to pollIntervalMinutes in ClusterCatalog spec

In #1434, the API was updated to use pollIntervalMinutes instead of pollInterval.
This commit ensures all references are properly updated.

See: https://github.com/operator-framework/operator-controller/pull/1434/files#diff-93b46b0715181c9cf397eed60862261b7839ff721599fcc393a393b9edea610bR57

Author: camilamacedo86

config/samples/catalogd_operatorcatalog.yaml

@@ -7,4 +7,4 @@ spec:
     type: Image
     image:
       ref: quay.io/operatorhubio/catalog:latest
-      pollInterval: 10m
+      PollIntervalMinutes: 10m

docs/concepts/crd-upgrade-safety.md

@@ -117,7 +117,7 @@ spec:
             type: object
           status:
             type: object
-          pollInterval:
+          PollIntervalMinutes:
             type: string
         type: object
     served: true
@@ -173,7 +173,7 @@ In this example, the existing stored version, `v1alpha1`, has been removed:
                 type: object
               status:
                 type: object
-              pollInterval:
+              PollIntervalMinutes:
                 type: string
             type: object
     ```
@@ -185,7 +185,7 @@ In this example, the existing stored version, `v1alpha1`, has been removed:
 
 ### Removing an existing field
 
-In this example, the `pollInterval` field has been removed from `v1alpha1`:
+In this example, the `PollIntervalMinutes` field has been removed from `v1alpha1`:
 
 ??? example
     ```yaml
@@ -209,12 +209,12 @@ In this example, the `pollInterval` field has been removed from `v1alpha1`:
 
 ??? failure "Error output"
     ```
-    validating upgrade for CRD "test.example.com" failed: CustomResourceDefinition test.example.com failed upgrade safety validation. "NoExistingFieldRemoved" validation failed: crd/test.example.com version/v1alpha1 field/^.spec.pollInterval may not be removed
+    validating upgrade for CRD "test.example.com" failed: CustomResourceDefinition test.example.com failed upgrade safety validation. "NoExistingFieldRemoved" validation failed: crd/test.example.com version/v1alpha1 field/^.spec.PollIntervalMinutes may not be removed
     ```
 
 ### Adding a required field
 
-In this example, `pollInterval` has been changed to a required field:
+In this example, `PollIntervalMinutes` has been changed to a required field:
 
 ??? example
     ```yaml
@@ -233,14 +233,14 @@ In this example, `pollInterval` has been changed to a required field:
                 type: object
               status:
                 type: object
-              pollInterval:
+              PollIntervalMinutes:
                 type: string
             type: object
             required:
-            - pollInterval
+            - PollIntervalMinutes
     ```
 
 ??? failure "Error output"
     ```
-    validating upgrade for CRD "test.example.com" failed: CustomResourceDefinition test.example.com failed upgrade safety validation. "ChangeValidator" validation failed: version "v1alpha1", field "^": new required fields added: [pollInterval]
+    validating upgrade for CRD "test.example.com" failed: CustomResourceDefinition test.example.com failed upgrade safety validation. "ChangeValidator" validation failed: version "v1alpha1", field "^": new required fields added: [PollIntervalMinutes]
     ```

docs/getting-started/olmv1_getting_started.md

@@ -44,7 +44,7 @@ spec:
     type: Image
     image:
       ref: quay.io/operatorhubio/catalog:latest
-      pollInterval: 10m
+      PollIntervalMinutes: 10m
 EOF
 ```
 

docs/tutorials/add-catalog.md

@@ -35,7 +35,7 @@ This catalog is distributed as an image [quay.io/operatorhubio/catalog](https://
         type: Image
         image:
           ref: <catalog_image>
-          pollInterval: <poll_interval_duration>
+          PollIntervalMinutes: <poll_interval_duration>
     ```
 
     `catalog_name`
@@ -57,7 +57,7 @@ This catalog is distributed as an image [quay.io/operatorhubio/catalog](https://
         type: Image
         image:
           ref: quay.io/operatorhubio/catalog:latest
-          pollInterval: 10m
+          PollIntervalMinutes: 10m
     ```
 
 2. Apply the ClusterCatalog CR: