Merge pull request 'ci: use shared ci-workflows Maven workflow' (#74) from ci/ci-workflows into develop

Replace the platform-ci release callers with one caller of
KofTwentyTwo/ci-workflows maven.yaml (qqq-orb port).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/build.yaml

@@ -0,0 +1,9 @@
+name: build
+on:
+  push:
+jobs:
+  maven:
+    uses: self:KofTwentyTwo/ci-workflows/.gitea/workflows/maven.yaml@v1
+    secrets: inherit
+    with:
+      publish: false

.gitea/workflows/qrun-release.yaml

@@ -1,12 +0,0 @@
-# Identical in every QRun Maven application: do not edit. It only delegates to the protected qrun-release-v1 channel.
-name: qrun-release
-on:
-  push:
-    branches: [main, develop, 'release/**', 'hotfix/**']
-permissions:
-  contents: read
-jobs:
-  release:
-    uses: self:KofTwentyTwo/platform-ci/.gitea/workflows/java-maven.yaml@qrun-release-v1
-    with:
-      runner: linux-small