Use public Gitea API for release asset upload

.gitea/workflows/build.yml

@@ -65,7 +65,7 @@ jobs:
         run: |
           set -euo pipefail
           version="0.1.2"
-          api="http://gitea:3000/api/v1/repos/${GITHUB_REPOSITORY}"
+          api="https://git.wilkensxl.de/api/v1/repos/MrSphay/MrTrust"
           release_json="$(curl -fsS -H "Authorization: token ${GITEA_TOKEN}" "${api}/releases/tags/v${version}")"
           release_id="$(printf '%s' "$release_json" | sed -n 's/.*"id":\([0-9][0-9]*\).*/\1/p' | head -n 1)"
           if [ -z "$release_id" ]; then