0.27.0 matrix release candidate

src/freedombone-app-matrix

 MATRIX_FEDERATION_ONION_PORT=8111
 MATRIX_ONION_PORT=8109
 MATRIX_REPO="https://github.com/matrix-org/synapse"
-MATRIX_COMMIT='552f123bea1014680ab798b7e34cd1b23424a189'
+MATRIX_COMMIT='ddb00efc1ddec646d02e8def6053003f04d077d7'
 REPORT_STATS="no"
 MATRIX_SECRET=
 MATRIX_EXPIRE_MONTHS=1