fix(ci): correct syntax errors in Gitea workflows

Quote shell variable assignment in auto-release to prevent word splitting
and fix whitespace typo in matrix reference (`matrix .yq-os` → `matrix.yq-os`)
in install-yq workflow.

Co-authored-by: Copilot <copilot@github.com>

.gitea/workflows/auto-release.yaml

@@ -51,7 +51,7 @@ jobs:
         if: steps.check_change.outputs.changed == 'true'
         id: bump
         run: |
-          latest_tag=${{ steps.get_tag.outputs.latest_tag }}
+          latest_tag="${{ steps.get_tag.outputs.latest_tag }}"
           IFS='.' read -r major minor patch <<< "${latest_tag#v}"
           patch=$((patch + 1))
           new_tag="v${major}.${minor}.${patch}"