fix(ci): softprops/action-gh-release v4 does not exist, use v3

The previous bump from v2 to v4 (commit 3949a94) used a version
that doesn't exist — the latest is v3. This caused v0.42.0 release
CI to fail silently. Fixing so v0.42.1 release can complete.

Author: molty3000

.github/workflows/release.yml

@@ -48,7 +48,7 @@ jobs:
         run: sha256sum odek-* > checksums.txt
 
       - name: release
-        uses: softprops/action-gh-release@v4
+        uses: softprops/action-gh-release@v3
         with:
           files: |
             odek-linux-amd64