chore: bump main to RHDH 1.5, BS 1.35, and OCP 4.18 (#871)

Co-authored-by: rhdh-bot service account <[email protected]>

Author: nickboldt

artifacts/attributes.adoc

@@ -10,10 +10,10 @@
 :product: Red Hat Developer Hub
 :product-short: Developer Hub
 :product-very-short: RHDH
-:product-version: 1.4
-:product-bundle-version: 1.4.0
-:product-chart-version: 1.4.0
-:product-backstage-version: 1.29.2
+:product-version: 1.5
+:product-bundle-version: 1.5.0
+:product-chart-version: 1.5.0
+:product-backstage-version: 1.35.0
 :product-custom-resource-type: Backstage
 :rhdeveloper-name: Red Hat Developer
 :rhel: Red Hat Enterprise Linux
@@ -39,7 +39,7 @@
 :logging-short: OpenShift Logging
 // minimum and current latest supported versions
 :ocp-version-min: 4.14
-:ocp-version: 4.17
+:ocp-version: 4.18
 :kubernetes-version: 1.24
 // First mention of OpenShift CLI or `oc` in a module
 :openshift-cli: pass:quotes[OpenShift CLI (`oc`)]