Chore: Adjust Workflows for v5 (#5689)

* chore(workflows): remove unsued workflow

* chore(workflows): rename branches in workflows

* fix(license): update copyright year

* chore(workflows): update branches to ignore in staging build workflow

* chore(workflows): update branch references in issue processing and changelog generation

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Co-authored-by: Andras Bacsai <5845193+andrasbacsai@users.noreply.github.com>

.github/workflows/coolify-production-build.yml

@@ -2,7 +2,7 @@ name: Production Build (v4)
 
 on:
   push:
-    branches: ["main"]
+    branches: ["v4.x"]
     paths-ignore:
       - .github/workflows/coolify-helper.yml
       - .github/workflows/coolify-helper-next.yml