fix(ci): fetch full git history for GoReleaser tag detection

GoReleaser requires git tags to build, but actions/checkout does a
shallow clone by default. Use fetch-depth: 0 to include all tags.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: AndrewJo

.github/workflows/release.yml

@@ -18,6 +18,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - uses: actions/setup-go@v5
         with: