Update main branch docs after release 6.1.0 (#988)

SUMMARY

Update main branch docs after release 6.1.0

ISSUE TYPE


Docs Pull Request

Reviewed-by: Bikouo Aubin
Reviewed-by: Bianca Henderson <beeankha@gmail.com>
Reviewed-by: Alina Buzachis

changelogs/fragments/20250428-k8s-service-hide-fields-first.yaml

@@ -1,3 +0,0 @@
----
-bugfixes:
-  - module_utils/k8s/service - hide fields first before creating diffs (https://github.com/ansible-collections/kubernetes.core/pull/915).

changelogs/fragments/20250522-add-plain-http-for-oci-registries.yaml

@@ -1,4 +0,0 @@
-minor_changes:
-  - helm - Parameter plain_http added for working with insecure OCI registries (https://github.com/ansible-collections/kubernetes.core/pull/934).
-  - helm_pull - Parameter plain_http added for working with insecure OCI registries (https://github.com/ansible-collections/kubernetes.core/pull/934).
-  - helm_template - Parameter plain_http added for working with insecure OCI registries (https://github.com/ansible-collections/kubernetes.core/pull/934).

changelogs/fragments/20250704-k8s-rollback-integration-test-coverage.yaml

@@ -1,2 +0,0 @@
-trivial:
-  - k8s_rollback - Increase integration test coverage for k8s_rollback module (https://github.com/ansible-collections/kubernetes.core/pull/950).

changelogs/fragments/20250720-k8s-patch-add-hidden-fields.yaml

@@ -1,3 +0,0 @@
----
-minor_changes:
-  - Module k8s_json_patch - Add support for `hidden_fields` (https://github.com/ansible-collections/kubernetes.core/pull/964).

changelogs/fragments/20250911-add-support-helm-take-ownership.yaml

@@ -1,2 +0,0 @@
-minor_changes:
-  - helm - Parameter take_ownership added (https://github.com/ansible-collections/kubernetes.core/pull/957).