ci(release): make changelog builder non-fatal

The auto-generated PR-diff changelog (mikepenz/release-changelog-builder-action)
fails the release when GitHub's compare API returns "no common ancestor" for the
tag range — a quirk of the force-pushed/merge topology between v0.1.x and v0.2.0,
not a real history break (v0.1.14 is a direct ancestor of v0.2.0 locally).

Set failOnError: "false" + continue-on-error so a failed PR-diff degrades to an
empty "Detailed Changes" section instead of aborting the release. The CHANGELOG.md
entry (via changelog-reader) remains the source of truth for the release notes.
Matches the codeanalyzer-typescript release workflow.

Author: rahlk

.github/workflows/release.yml

@@ -97,9 +97,10 @@ jobs:
 
       - name: Build changelog
         id: gen_changelog
+        continue-on-error: true   # auto-PR-diff is best-effort; CHANGELOG.md is the source of truth
         uses: mikepenz/release-changelog-builder-action@v5
         with:
-          failOnError: "true"
+          failOnError: "false"
           configuration: .github/workflows/release_config.json
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}