fix(rln-relay): remove poParentStream, remove ganache log output

tests/v2/test_rln_group_manager_onchain.nim

@@ -121,7 +121,7 @@ proc runGanache(): Process =
   # --wallet.defaultBalance           The default account balance, specified in ether.
   # See ganache documentation https://www.npmjs.com/package/ganache for more details
   try:
-    let runGanache = startProcess("npx", args = ["--yes", "ganache", "--port", "8540", "--miner.blockGasLimit", "300000000000000", "--wallet.defaultBalance", "10000"], options = {poUsePath, poParentStreams})
+    let runGanache = startProcess("npx", args = ["--yes", "ganache", "--port", "8540", "--miner.blockGasLimit", "300000000000000", "--wallet.defaultBalance", "10000"], options = {poUsePath})
     let ganachePID = runGanache.processID
 
     # We read stdout from Ganache to see when daemon is ready
@@ -149,6 +149,9 @@ proc stopGanache(runGanache: Process) {.used.} =
   try:
     # We terminate Ganache daemon by sending a SIGTERM signal to the runGanache PID to trigger RPC server termination and clean-up
     terminate(runGanache)
+    # NOTE: the below line must remain commented out, otherwise it will cause a deadlocked state
+    # ref: https://nim-lang.org/docs/osproc.html#waitForExit%2CProcess%2Cint
+    # debug "ganache logs", logs=runGanache.outputstream.readAll()
     debug "Sent SIGTERM to Ganache", ganachePID=ganachePID
   except:
     error "Ganache daemon termination failed: ", err = getCurrentExceptionMsg()