Fix follow-up for bumping catalogd to v0.36.0: Replace pollInterval with pollIntervalMinutes in ClusterCatalog spec and update documentation references

In #1434, the API was updated to use pollIntervalMinutes instead of pollInterval.
This commit ensures that all references to pollInterval are correctly replaced with pollIntervalMinutes across the ClusterCatalog spec and relevant documentation.

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: 10

docs/getting-started/olmv1_getting_started.md

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

docs/tutorials/add-catalog.md

@@ -35,17 +35,17 @@ 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`
     :   Specifies the image reference for the catalog you want to install, such as `quay.io/operatorhubio/catalog:latest`.
 
     `poll_interval_duration`
-    :   Specifies the interval for polling the remote registry for newer image digests.
-            The default value is `24h`.
-            Valid units include seconds (`s`), minutes (`m`), and hours (`h`).
-            To disable polling, set a zero value, such as `0s`.
+    :   Specifies the interval in minutes for polling the remote registry for new image content.
+        `pollIntervalMinutes` is optional and only accepts values in minutes.
+         It cannot be set when the image reference is digest-based.
+         To disable polling, omit this field.
 
     ``` yaml title="Example `operatorhubio.yaml` CR"
     apiVersion: olm.operatorframework.io/v1alpha1
@@ -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: 10
     ```
 
 2. Apply the ClusterCatalog CR:

hack/test/pre-upgrade-setup.sh

@@ -29,7 +29,7 @@ spec:
     type: Image
     image:
       ref: ${TEST_CATALOG_IMG}
-      pollInterval: 24h
+      pollIntervalMinutes: 1440
 EOF
 
 kubectl apply -f - <<EOF