CI: keep pre-release banner indented so the workflow YAML parses

Co-authored-by: D3C0Y <decoder-dev@users.noreply.github.com>

Author: cursoragent

.github/workflows/build.yml

@@ -243,9 +243,7 @@ jobs:
           TITLE="Telegram ${APP_VERSION} (${BUILD_NUMBER}) sideload"
           RELEASE_FLAGS=()
           if [[ "$TAG" == *-pre ]]; then
-            PRE_BANNER="
-⚠️ **Pre-release** for device testing. Not marked Latest.
-"
+            PRE_BANNER="⚠️ **Pre-release** for device testing. Not marked Latest."
             TITLE="Telegram ${APP_VERSION} (${BUILD_NUMBER}) sideload pre-release"
             RELEASE_FLAGS=(--prerelease --latest=false)
           fi