docs: Point the CRD links at the Stackable Hub (#764)

Author: lfrancke

docs/modules/secret-operator/pages/index.adoc

@@ -1,7 +1,7 @@
 = Stackable Secret Operator
 :description: Stackable Secret Operator enhances Kubernetes Secrets by provisioning Pods with TLS certificates, Kerberos keytabs, and tokens.
 :github: https://github.com/stackabletech/secret-operator/
-:crd: {crd-docs-base-url}/secret-operator/{crd-docs-version}/
+:crd: {crd-ref}{crd-ref-release}&operator=secret-operator
 
 [.link-bar]
 * {github}[GitHub {external-link-icon}^]

docs/modules/secret-operator/pages/reference/crds.adoc

@@ -1,3 +1,3 @@
 = CRD Reference
 
-Find all CRD reference for the Stackable Secret Operator at: {crd-docs-base-url}/secret-operator/{crd-docs-version}.
+Find all CRD reference for the Stackable Secret Operator at: {crd-ref}{crd-ref-release}&operator=secret-operator.

docs/modules/secret-operator/partials/nav.adoc

@@ -12,7 +12,7 @@
 * xref:secret-operator:security.adoc[]
 * xref:secret-operator:reference/index.adoc[]
 ** xref:secret-operator:reference/crds.adoc[]
-*** {crd-docs}/secrets.stackable.tech/secretclass/v1alpha2/[SecretClass {external-link-icon}^]
-*** {crd-docs}/secrets.stackable.tech/truststore/v1alpha1/[TrustStore {external-link-icon}^]
+*** {crd-ref}/secrets.stackable.tech/v1alpha2/secretclass{crd-ref-release}[SecretClass {external-link-icon}^]
+*** {crd-ref}/secrets.stackable.tech/v1alpha1/truststore{crd-ref-release}[TrustStore {external-link-icon}^]
 ** xref:secret-operator:reference/commandline-parameters.adoc[]
 * xref:secret-operator:troubleshooting.adoc[]