chore: release notes single-sourcing script fixes and enhancements

Signed-off-by: Fabrice Flore-Thébault <[email protected]>

Author: themr0c

artifacts/attributes.adoc

@@ -10,9 +10,9 @@
 :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-version: 1.5
+:product-bundle-version: 1.5.0
+:product-chart-version: 1.5.0
 :product-backstage-version: 1.29.2
 :rhdeveloper-name: Red Hat Developer
 :rhel: Red Hat Enterprise Linux

assemblies/assembly-release-notes-breaking-changes.adoc

@@ -0,0 +1,9 @@
+:_content-type: REFERENCE
+[id="breaking-changes"]
+= Breaking changes
+
+This section lists breaking changes in {product} {product-version}.
+
+
+None.
+

assemblies/assembly-release-notes-new-features.adoc

@@ -1,11 +1,9 @@
-:_content-type: ASSEMBLY
+:_content-type: REFERENCE
 [id="deprecated-functionalities"]
 = Deprecated functionalities
 
 This section lists deprecated functionalities in {product} {product-version}.
 
 
-include::modules/release-notes/snip-deprecated-functionality-rhidp-1138.adoc[leveloffset=+1]
-
-
+None.
 

build/templates/assembly.adoc.jinja

@@ -0,0 +1,9 @@
+:_content-type: REFERENCE
+[id="fixed-issues"]
+= Fixed issues
+
+This section lists issues fixed in {product} {product-version}.
+
+
+None.
+