[K8S-537] bind operator and operator chart versions

Prior to this commit the operator helm chart was managed as a standalone
module/project. Doing so resulted in needless confusion and compatibility issues.

This commit moves `charts/operator` to `operator/chart` and combines the go
modules into one, effectively making the release and development process of the
operator and its chart one in the same.

Author: chrisseto

.changes/unreleased/charts-operator-Changed-20250310-170442.yaml

@@ -0,0 +1,4 @@
+project: operator
+kind: Changed
+body: "[Chart] Moved all template rendering into `entry-point.yaml` to match the redpanda and console charts."
+time: 2025-03-10T17:04:42.270572-04:00

.changes/unreleased/operator-Changed-20250310-170442.yaml

@@ -0,0 +1,7 @@
+project: operator
+kind: Changed
+body: |-
+    The redpanda operator's helm chart has been merged into the operator itself.
+
+      Going forward the chart's `version` and `appVersion` will always be equal.
+time: 2025-03-27T13:21:32.469272-04:00

.changes/unreleased/operator-Changed-20250327-132132.yaml

@@ -46,6 +46,3 @@ projects:
 - label: Connectors Helm Chart
   key: charts/connectors
   changelog: charts/connectors/CHANGELOG.md
-- label: Redpanda Operator Helm Chart
-  key: charts/operator
-  changelog: charts/operator/CHANGELOG.md

…ts-operator-Removed-20250327-130201.yaml …ed/operator-Removed-20250327-130201.yaml.changes/unreleased/charts-operator-Removed-20250327-130201.yaml renamed to .changes/unreleased/operator-Removed-20250327-130201.yaml .changes/unreleased/charts-operator-Removed-20250327-130201.yaml renamed to .changes/unreleased/operator-Removed-20250327-130201.yaml

@@ -59,7 +59,7 @@ var setupSuite = sync.OnceValues(func() (*framework.Suite, error) {
 		WithCRDDirectory("../operator/config/crd/bases").
 		OnFeature(func(ctx context.Context, t framework.TestingT) {
 			t.Log("Installing Redpanda operator chart")
-			t.InstallLocalHelmChart(ctx, "../charts/operator", helm.InstallOptions{
+			t.InstallLocalHelmChart(ctx, "../operator/chart", helm.InstallOptions{
 				Name:      "redpanda-operator",
 				Namespace: t.IsolateNamespace(ctx),
 				Values: map[string]any{
@@ -74,7 +74,7 @@ var setupSuite = sync.OnceValues(func() (*framework.Suite, error) {
 					},
 					"additionalCmdFlags": []string{"--additional-controllers=all", "--enable-helm-controllers=false", "--force-defluxed-mode"},
 				},
-			}, helm.Dependency{Name: "prometheus", Repository: "https://prometheus-community.github.io/helm-charts"})
+			})
 			t.Log("Successfully installed Redpanda operator chart")
 		}).
 		RegisterTag("cluster", 1, ClusterTag).